Question 1: Palette 1/118

NEET 2026 MCQ

The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order.

A. The parasites reproduce asexually in RBCs, bursting the cells.

B. The parasites reproduce asexually in liver cells, bursting the cells and releasing into blood.

C. Gametocytes develop in RBCs.

D. Sporozoites reach the liver through the blood.

E. Female mosquito injects sporozoites into humans during bite.

Choose the correct answer from the options given below:

A

$\mathrm{E}, \mathrm{D}, \mathrm{B}, \mathrm{A}, \mathrm{C}$

B

$\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}, \mathrm{E}$

C

$\mathrm{C}, \mathrm{A}, \mathrm{B}, \mathrm{D}, \mathrm{E}$

D

$\mathrm{E}, \mathrm{C}, \mathrm{D}, \mathrm{B}, \mathrm{A}$

Question 2: Palette 2/118

NEET 2026 MCQ

$ \text { Match List I with List II: } $

$ \text { List I (Drug) } $		$ \text { List II (Effect) } $
A.	Nicotine	I.	Causes sense of euphoria and increased energy
B.	Morphine	II.	Stimulates adrenal gland to release catecholamines into blood circulation
C.	Heroin	III.	Effective sedative and painkiller
D.	Cocaine	IV.	A depressant; slows down body function

Choose the correct answer from the options given below:

A

A-III, B-II, C-IV, D-I

B

A-II, B-III, C-I, D-IV

C

A-II, B-III, C-IV, D-I

D

A-III, B-II, C-I, D-IV

Question 3: Palette 3/118

NEET 2026 MCQ

Which of the following is used as an effective sedative and painkiller for treating post-surgery patients?

A

Anti-retroviral drugs

B

Interferon

C

Antibiotics

D

Morphine

Question 4: Palette 4/118

NEET 2026 MCQ

Colostrum, secreted by mother during initial days of lactation, is abundant in $\_\_\_\_$ .

A

lgD

B

IgG

C

lgM

D

$\operatorname{lgA}$

Question 5: Palette 5/118

NEET 2026 MCQ

Which of the following statements is correct about Plasmodium?

A

Fertilization takes place in mosquito gut

B

Reproduces sexually in liver cells

C

Reproduces sexually in RBCs

D

Gametocytes develop in mosquito gut

Question 6: Palette 6/118

NEET 2026 MCQ

Which of the following are secondary lymphoid organs?

(a) Bone marrow

(b) Tonsils

(c) Spleen

(d) Thymus

Choose the correct answer from the options given below:

A

(a) and (d) only

B

(a) and (b) only

C

(b) and (c) only

D

(b) and (d) only

Question 7: Palette 7/118

NEET 2025 MCQ

Neoplastic characteristics of cells refer to:

A. A mass of proliferating cell

B. Rapid growth of cells

C. Invasion and damage to the surrounding tissue

D. Those confined to original location

Choose the correct answer from the options given below:

A

A, B, D only

B

B, C, D only

C

A, B only

D

A, B, C only

Question 8: Palette 8/118

NEET 2025 MCQ

Which are correct:

A. Computed tomography and magnetic resonance imaging detect cancers of internal organs.

B. Chemotherapeutics drugs are used to kill non-cancerous cells.

C. $\alpha$-interferon activate the cancer patients' immune system and helps in destroying the tumour.

D. Chemotherapeutic drugs are biological response modifiers.

E. In the case of leukaemia blood cell counts are decreased.

Choose the correct answer from the options given below:

A

C and D only

B

A and C only

C

B and D only

D

D and E only

Question 9: Palette 9/118

NEET 2025 MCQ

After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s) / tissue(s) like

A. thymus

B. bone marrow

C. spleen

D. Iymph nodes

E. Peyer's patches

Choose the correct answer from the options given below

A

E, A, B only

B

C, D, E only

C

B, C, D only

D

A, B, C only

Question 10: Palette 10/118

NEET 2025 MCQ

Which of the following type of immunity is present at the time of birth and is a non-specific type of defence in the human body?

A

Cell-mediated Immunity

B

Humoral Immunity

C

Acquired Immunity

D

Innate Immunity

Question 11: Palette 11/118

NEET 2025 MCQ

Identify the statement that is NOT correct.

A

Antigen binding site is located at C-terminal region of antibody molecules.

B

Constant region of heavy and light chains are located at C-terminus of antibody molecules

C

Each antibody has two light and two heavy chains.

D

The heavy and light chains are held together by disulfide bonds.

Question 12: Palette 12/118

NEET 2025 MCQ

Match List-I with List-II

	List - I		List - II
A	Emphysema	I	Rapid spasms in muscle due to low $\mathrm{Ca}^{++}$in body fluid
B	Angina Pectoris	II	Damaged alveolar walls and decreased respiratory surface
C	Glomerulonephritis	III	Acute chest pain when not enough oxygen is reaching to heart muscle
D	Tetany	IV	Inflammation of glomeruli of kidney

Choose the correct answer from the options given below :

A

A-II, B-IV, C-III, D-I

B

A-II, B-III, C-IV, D-I

C

A-III, B-I, C-IV, D-II

D

A-III, B-I, C-II, D-IV

Question 13: Palette 13/118

NEET 2024 MCQ

Given below are two statements:

Statement I: Antibiotics are chemicals produced by microbes that kill other microbes.

Statement II: Antibodies are chemicals formed in body that eliminate microbes.

In the light of the above statements, choose the most appropriate answer from the options given below.

A

Statement I is correct but Statement II is incorrect

B

Statement I is incorrect but Statement II is correct

C

Both Statement I and Statement II are correct

D

Both Statement I and Statement II are incorrect

Question 14: Palette 14/118

NEET 2024 MCQ

Math List-I with List-II:

	List - I		List - II
(A)	Malignant tumors	(I)	Destroy tumors
(B)	MALT	(II)	AIDS
(C)	NACO	(III)	Metastasis
(D)	$\alpha$-Interferons	(IV)	Lymphoid tissue

Choose the correct answer from the options given below:

A

A-III, B-IV, C-II, D-I

B

A-IV, B-III, C-II, D-I

C

A-III, B-IV, C-I, D-II

D

A-III, B-I, C-IV, D-II

Question 15: Palette 15/118

NEET 2024 MCQ

Match List I with List II :

	List - I		List - II
(A)	B-Lymphocytes	(I)	Passive immunity
(B)	Interferons	(II)	Cell mediated immunity
(C)	T-Lymphocytes	(III)	Produce an army of proteins in response to pathogens
(D)	Colostrum	(IV)	Innate immunity

Choose the correct answer from the options given below :

A

A-I, B-IV, C-II, D-III

B

A-IV, B-II, C-III, D-I

C

A-III, B-IV, C-II, D-I

D

A-II, B-IV, C-I, D-III

Question 16: Palette 16/118

NEET 2024 MCQ

Which of the following are Autoimmune disorders?

A. Myasthenia gravis

B. Rheumatoid arthritis

C. Gout

D. Muscular dystrophy

E. Systemic Lupus Erythematosus (SLE)

Choose the most appropriate answer from the options given below:

A

A, B & D only

B

A, B & E only

C

B, C & E only

D

C, D & E only

Question 17: Palette 17/118

NEET 2024 MCQ

Match List I with List II:

	List - I		List - II
A.	Typhoid	I.	Fungus
B.	Leishmaniasis	II.	Nematode
C.	Ringworm	III.	Protozoa
D.	Filariasis	IV.	Bacteria

Choose the correct answer from the options given below:

A

A-I, B-III, C-II, D-IV

B

A-IV, B-III, C-I, D-II

C

A-III, B-I, C-IV, D-II

D

A-II, B-IV, C-III, D-I

Question 18: Palette 18/118

NEET 2024 MCQ

Match List I with List II:

	List - I		List - II
A.	Cocaine	I.	Effective sedative in surgery
B.	Heroin	II.	Cannabis sativa
C.	Morphine	III.	Erythroxylum
D.	Marijuana	IV.	Papaver somniferum

Choose the correct answer from the options given below:

A

A-IV, B-III, C-I, D-II

B

A-I, B-III, C-II, D-IV

C

A-II, B-I, C-III, D-IV

D

A-III, B-IV, C-I, D-II

Question 19: Palette 19/118

NEET 2024 MCQ

Match List I with List II :

	List - I		List - II
A.	Common cold	I.	Plasmodium
B.	Haemozoin	II.	Typhoid
C.	Widal test	III.	Rhinoviruses
D.	Allergy	IV.	Dust mites

Choose the correct answer from the options given below :

A

A-III, B-IV, C-III, D-I

B

A-I, B-III, C-II, D-IV

C

A-III, B-I, C-II, D-IV

D

A-IV, B-II, C-III, D-I

Question 20: Palette 20/118

NEET 2024 MCQ

Given below are two statements :

Statement I : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.

Statement II : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.

In the light of above statements, choose the most appropriate answer from the options given below

A

Both Statement I and Statement II are correct.

B

Both Statement I and Statement II are incorrect.

C

Statement I is correct but Statement II is incorrect.

D

Statement I is incorrect but Statement II is correct.

Question 21: Palette 21/118

NEET 2023 MCQ

Which of the following sexually transmitted infections are completely curable ?

A

HIV infection and Trichomoniasis

B

Syphilis and trichomoniasis

C

Hepatitis – B and Genital herpes

D

Genital herpes and Genital warts

Question 22: Palette 22/118

NEET 2023 MCQ

Match List - I with List - II.

	List - I		List - II
(A)	Typhoid	(I)	Protozoan
(B)	Elephantiasis	(II)	Salmonella
(C)	Ringworm	(III)	Aschelminthes
(D)	Malaria	(IV)	Microsporum

Choose the correct answer from the options given below :

A

(A)-(I), (B)-(IV), (C)-(III), (D)-(II)

B

(A)-(I), (B)-(III), (C)-(IV), (D)-(II)

C

(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

D

(A)-(II), (B)-(IV), (C)-(III), (D)-(I)

Question 23: Palette 23/118

NEET 2023 MCQ

Match List-I with List-II.

	List - I		List - II
(A)	Cytokine barriers	(I)	Mucus coating of respiratory tract
(B)	Cellular barriers	(II)	Interferons
(C)	Physiological barriers	(III)	Neutrophils and Macrophages
(D)	Physical barriers	(IV)	Tears and Saliva

Choose the correct answer from the options given below :

A

(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

B

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

C

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

D

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)

Question 24: Palette 24/118

NEET 2023 MCQ

Which one of the following common sexually transmitted diseases is completely curable when detected early and treated properly?

A

Gonorrhoea

B

Hepatitis-B

C

HIV Infection

D

Genital herpes

Question 25: Palette 25/118

NEET 2023 MCQ

Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?

A

Serum and Urine analysis

B

Polymerase Chain Reaction (PCR) technique

C

Enzyme Linked Immuno-Sorbent Assay (ELISA) technique

D

Recombinant DNA Technology

Question 26: Palette 26/118

NEET 2023 MCQ

In which blood corpuscles, the HIV undergoes replication and produces progeny viruses?

A

B-lymphocytes

B

Basophils

C

Eosinophils

D

T_H cells

Question 27: Palette 27/118

NEET 2023 MCQ

Match List I with List II.

	List I		List II
(A)	Heroin	(I)	Effect on cardiovascular system
(B)	Marijuana	(II)	Slow down body function
(C)	Cocaine	(III)	Painkiller
(D)	Morphine	(IV)	Interfere with transport of dopamine

Choose the correct answer from the options given below:

A

A-I, B-II, C-III, D-IV

B

A-IV, B-III, C-II, D-I

C

A-III, B-IV, C-I, D-II

D

A-II, B-I, C-IV, D-III

Question 28: Palette 28/118

NEET 2023 MCQ

Match List I with List II.

	List I		List II
(A)	Ringworm	(I)	Haemophilus influenzae
(B)	Filariasis	(II)	Trichophyton
(C)	Malaria	(III)	Wuchereria bancrofti
(D)	Pneumonia	(IV)	Plasmodium vivax

Choose the correct answer from the options given below:

A

A-II, B-III, C-I, D-IV

B

A-III, B-II, C-I, D-IV

C

A-III, B-II, C-IV, D-I

D

A-II, B-III, C-IV, D-I

Question 29: Palette 29/118

NEET 2022 MCQ

Which of the following reasons is mainly responsible for graft rejection in transplantation of organs?

A

Cell-mediated response

B

Inability of recipient to differentiate between ‘self’ and ‘non-self’ tissues/cells

C

Humoral immune response only

D

Auto-immune response

Question 30: Palette 30/118

NEET 2022 MCQ

Match List - I with List - II :

	List - I		List - II
(a)	Cellular barrier	(i)	Interferons
(b)	Cytokine barrier	(ii)	Mucus
(c)	Physical barrier	(iii)	Neutrophils
(d)	Physiological barrier	(iv)	HCl in gastric juice

Choose the correct answer from the options given below :

A

(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)

B

(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

C

(a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)

D

(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)

Question 31: Palette 31/118

NEET 2022 MCQ

Given below are two statements:

Statement I : Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.

Statement II : Rheumatoid arthritis is a condition where body does not attack self cells.

In the light of the above statements, choose the most appropriate answer from the options given below :

A

Both Statement I and Statement II are correct

B

Both Statement I and Statement II are incorrect

C

Statement I is correct but Statement II is incorrect

D

Statement I is incorrect but Statement II is correct

Question 32: Palette 32/118

NEET 2022 MCQ

Select the incorrect statement with respect to acquired immunity.

A

Primary response is produced when our body encounters a pathogen for the first time.

B

Anamnestic response is elicited on subsequent encounters with the same pathogen.

C

Anamnestic response is due to memory of first encounter.

D

Acquired immunity is non-specific type of defense present at the time of birth.

Question 33: Palette 33/118

NEET 2021 MCQ

Identify the incorrect pair

A

Drugs - Ricin

B

Alkaloids - Codeine

C

Toxin - Abrin

D

Lectins - Concanavalin A

Question 34: Palette 34/118

NEET 2021 MCQ

For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection?

A

Hybridization Technique

B

Western Blotting Technique

C

Southern Blotting Technique

D

ELISA Technique

Question 35: Palette 35/118

NEET 2021 MCQ

Match List-I with List-II

	List-I		List-II
(a)	Filariasis	(i)	Haemophilus influenzae
(b)	Amoebiasis	(ii)	Trichophyton
(c)	Pneumonia	(iii)	Wuchereria bancrofti
(d)	Ringworm	(iv)	Entamoeba histolytica

Choose the correct answer from the options given below

A

(a)	(b)	(c)	(d)
(ii)	(iii)	(i)	(iv)

B

(a)	(b)	(c)	(d)
(iv)	(i)	(iii)	(ii)

C

(a)	(b)	(c)	(d)
(iii)	(iv)	(i)	(ii)

D

(a)	(b)	(c)	(d)
(i)	(ii)	(iv)	(iii)

Question 36: Palette 36/118

NEET 2021 MCQ

The Adenosine deaminase deficiency results into

A

Addison's disease

B

Dysfunction of immune system

C

Parkinson's disease

D

Digestive disorder

Question 37: Palette 37/118

NEET 2020 MCQ

Match the following diseases with the causative organism and select the correct option

Column-I	Column-II
(a) Typhoid	(i) Wuchereria
(b) Pneumonia	(ii) Plasmodium
(c) Filariasis	(iii) Salmonella
(d) Malaria	(iv) Haemophilus

A

(A) $ \to $ (iv), (B) $ \to $ (i), (C) $ \to $ (ii), (D) $ \to $ (iii)

B

(A) $ \to $ (iii), (B) $ \to $ (iv), (C) $ \to $ (i), (D) $ \to $ (ii)

C

(A) $ \to $ (i), (B) $ \to $ (iii), (C) $ \to $ (ii), (D) $ \to $ (iv)

D

(A) $ \to $ (ii), (B) $ \to $ (i), (C) $ \to $ (iii), (D) $ \to $ (iv)

Question 38: Palette 38/118

NEET 2020 MCQ

The infectious stage of Plasmodium that enters the human body is

A

Trophozoites

B

Sporozoites

C

Male gametocytes

D

Female gametocytes

Question 39: Palette 39/118

NEET 2020 MCQ

Identify the wrong statement with reference to immunity

A

Active immunity is quick and gives full response.

B

When exposed to antigen (living or dead) antibodies are produced in the host’s body. It is called “Active immunity”.

C

Foetus receives some antibodies from mother, it is an example for passive immunity.

D

When ready-made antibodies are directly given, it is called “Passive immunity”

Question 40: Palette 40/118

NEET 2019 MCQ

Drug called ‘Heroin’ is synthesized by :

A

glycosylation of morphine

B

nitration of morphine

C

methylation of morphine

D

acetylation of morphine

Question 41: Palette 41/118

NEET 2019 MCQ

Which of the following immune responses is responsible for rejection of kidney graft?

A

Inflammatory immune response

B

Cell-mediated immune response

C

Auto-immune response

D

Humoral immune response

Question 42: Palette 42/118

NEET 2019 MCQ

Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains :

A

Macrophages

B

Immunoglobulin A

C

Natural killer cells

D

Monocytes

Question 43: Palette 43/118

NEET 2019 MCQ

Which of the following sexually transmitted diseases is not completely curable ?

A

Genital herpes

B

Chlamydiasis

C

Gonorrhoea

D

Genital warts

Question 44: Palette 44/118

NEET 2019 MCQ

Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.

A

Salmonella typhi/ Anthorone test

B

Salmonella typhi/ Widal test

C

Plasmodium vivax/ UTI test

D

Streptococcus pneumoniae/ Widal test

Question 45: Palette 45/118

NEET 2018 MCQ

Which part of poppy plant is used to obtain the drug “smack”?

A

Flowers

B

Latex

C

Roots

D

Leaves

Question 46: Palette 46/118

NEET 2018 MCQ

Which of the following is not an autoimmune disease?

A

Psoriasis

B

Rheumatoid arthritis

C

Alzheimer’s disease

D

Vitiligo

Question 47: Palette 47/118

NEET 2018 MCQ

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

A

Elephantiasis

B

Ascariasis

C

Ringworm disease

D

Amoebiasis

Question 48: Palette 48/118

NEET 2017 MCQ

MALT constitutes about ________ percent of the lymphoid tissue in human body

A

20%

B

70%

C

10%

D

50%

Question 49: Palette 49/118

NEET 2017 MCQ

Transplantation of tissues/ organs fails often due to non-acceptance by the patient's body. Which type of immuneresponse is responsible for such rejections ?

A

Cell-mediated immune response

B

Physiological immune response

C

Hormonal immune response

D

Autoimmune response

Question 50: Palette 50/118

NEET 2016 MCQ

Which of the following sets of diseases is caused by bacteria ?

A

Herpes and influenza

B

Cholera and tetanus

C

Tetanus and mumps

D

Typhoid and smallpox

Question 51: Palette 51/118

NEET 2016 MCQ

Which of the following is correct regarding AIDS causative agent HIV ?

A

HIV is unenveloped retrovirus

B

HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase.

C

HIV does not escape but attacks the acquired immune response

D

HIV is enveloped virus that containing two identical molecule of single-stranded RNA and two molecule of reverse transcriptase

Question 52: Palette 52/118

NEET 2016 MCQ

Which of the following statements is not true for cancer cells in relation to mutations ?

A

Mutations inhibit production of telomerase

B

Mutations in proto-oncogenes accelerate the cell cycle

C

Mutations destroy telomerase inhibitor

D

Mutations inactivate the cell control

Question 53: Palette 53/118

NEET 2016 MCQ

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormally and it attacks self-cells, then it leads to

A

Active immunity

B

Allergic response

C

Graft rejection

D

Auto-immune disease

Question 54: Palette 54/118

NEET 2016 MCQ

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain -

A

Attenuated pathogens

B

Activated pathogens

C

Harvested antibodies

D

Gamma globulin

Question 55: Palette 55/118

NEET 2015 MCQ

Which of the following immunoglobulins does constitute the largest percentage in human milk?

A

IgM

B

IgA

C

IgG

D

IgD

Question 56: Palette 56/118

NEET 2015 MCQ

Grafted kidney may be rejected in a patient due to -

A

Humoral immune response

B

Cell-mediated immune response

C

Passive immune response

D

Innate immune response

Question 57: Palette 57/118

NEET 2015 MCQ

Which of the following diseases is caused by a protozoan?

A

Influenza

B

Babesiosis

C

Blastomycosis

D

Syphilis

Question 58: Palette 58/118

NEET 2015 MCQ

If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?

A

Fibrinogin in plasma

B

Haemocytes

C

Serum albumins

D

Serum globulins

Question 59: Palette 59/118

NEET 2015 MCQ

The active form of Entamoeba histolytica feeds upon

A

food in intensine

B

mucosa and submucosa of colon only

C

blood only

D

erythrocytes, mucosa and submucosa of colon

Question 60: Palette 60/118

NEET 2015 MCQ

HIV that causes AIDS, first starts destroying

A

thrombocytes

B

leucocytes

C

helper T-lymphocytes

D

B-lymphocytes

Question 61: Palette 61/118

NEET 2015 MCQ

Match each disease with its correct type of vaccine

Column I	Column II
A. Tubeculosis	(i) Harmless virus
B. Whooping cough	(ii) Inactivated toxin
C. Diphtheria	(iii) Killed bacteria
D. Polio	(iv) Harmless bacteria

A

A - (i), B - (ii), C - (iv), D - (iii)

B

A - (iv), B - (iii), C - (ii), D - (i)

C

A - (ii), B - (i), C - (iii), D - (iv)

D

A - (iii), B - (ii), C - (iv), D - (i)

Question 62: Palette 62/118

NEET 2014 MCQ

At which stage of HIV infection does one usually show symptoms of AIDS ?

A

Within 15 days of sexual contact with an infected person.

B

When the infected retro virus enters host cells.

C

When HIV damages large number of helper T−Lymphocytes.

D

When the viral DNA is produced by reverse transcriptase.

Question 63: Palette 63/118

NEET 2014 MCQ

Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown below?

A

Hallucinogen

B

Stimulant

C

Depressant

D

Pain−killer

Question 64: Palette 64/118

NEET 2013 MCQ

Which one of the following is a hallucinogenic drug?

A

Morphine

B

Opium

C

Caffeine

D

Lysergic acid diethylamide

Question 65: Palette 65/118

NEET 2013 MCQ

Which one of the following statements is correct regarding Sexually Transmitted Diseases (STD) ?

A

Haemophilia is one of the STD

B

The chances of a 5 year boy contacting a STD are very little

C

A person many contact syphilis by sharing milk with one already suffering from the disease

D

Genital herpes and sickle - cell anaemia are both STD

Question 66: Palette 66/118

NEET 2013 MCQ

Identify the site where Wuchereria bancrofti is normally found on human body :

A

Blood vessels of the thigh region

B

Lymphatic vessels of the lower limbs

C

Muscles of the legs

D

Skin between the fingers

Question 67: Palette 67/118

NEET 2013 MCQ

Infection of Ascaris usually occurs by :

A

Tse-tse fly

B

mosquito bite

C

drinking water containing eggs of Ascaris

D

eating imperfectly cooked pork

Question 68: Palette 68/118

NEET 2012 MCQ

Identify the molecules (a) and (b) shown below and select the right option giving their source and use.

A

Molecule $ \to $ (b) Heroin, Source $ \to $ Cannabis sativa, Use $ \to $ Depressant and slows down body functions

B

Molecule $ \to $ (a) Morphine, Source $ \to $ Papaver somniferum , Use $ \to $ Sedative and pain killer

C

Molecule $ \to $ (a) Cocaine, Source $ \to $ Erythroxylum coca , Use $ \to $ Accelerates the transport of dopamine

D

Molecule $ \to $ (b) Cannabinoid, Source $ \to $ Atropa belladona, Use $ \to $ Produces hallucinations

Question 69: Palette 69/118

NEET 2012 MCQ

Which one of the following statements is correct with respect to immunity?

A

Rejection of a kidney graft is the function of B-lymphocytes.

B

Preformed antibodies need to be injected to treat the bite by a viper snake.

C

The antibodies against small pox pathogen are produced by T – lymphocytes

D

Antibodies are protein molecules, each of which has four light chains.

Question 70: Palette 70/118

NEET 2012 MCQ

Which one of the following sets of items in the option A – D are correctly categorized with one exception in it ?

A

ITEMS	CATEGORY	EXCEPTION
Kangaroo, Koala, wombat	Australian masupials	Wombat

B

ITEMS	CATEGORY	EXCEPTION
Typhoid, Pneumonia, Diphtheria	Bacterial diseases	Diphtheria

C

ITEMS	CATEGORY	EXCEPTION
UAA, UAG, UGA	Stop codons	UAG

D

ITEMS	CATEGORY	EXCEPTION
Plasmodium, Cuscuta, Trypanosoma	Protozoan parasites	Cuscuta

Question 71: Palette 71/118

NEET 2012 MCQ

Read the following four statements (A-D) :
(A) Colostrum is recommended for the new born because it is rich in antigen
(B) Chikengunya is caused by a Gram negative bacterium
(C) Tissue culture has proved useful in obtaining virus-free plants
(D) Beer is manufactured by distillation of fermented grape juice
How many of the above statements are wrong ?

A

Two

B

One

C

Four

D

Three

Question 72: Palette 72/118

NEET 2012 MCQ

Which one of the following in not a property of cancerous cells whereas the remaining three are ?

A

They do not remain confined in the area of formation

B

They divide in an uncontrolled manner

C

They compete with normal cells for vital nutrients

D

They show contact inhibition

Question 73: Palette 73/118

NEET 2012 MCQ

Common cold differs from pneumonia in, that

A

Pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease

B

Pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine

C

Pneumonia is caused by a virus while the common cold is caused by the bacterium haemophilus influenzae

D

Pneumonia pathogen infects alveoli wheras the common cold affects nose and respiratory passage but not the lungs

Question 74: Palette 74/118

NEET 2012 MCQ

Cirrhosis of liver is caused by the chronic intake of

A

Cocaine

B

Alcohol

C

Tobacco (Chewing)

D

Opium

Question 75: Palette 75/118

NEET 2012 MCQ

Motile zygote of Plasmodium occurs in

A

Human liver

B

Salivary glands of Anopheles

C

Human RBCs

D

Gut of female Anopheles

Question 76: Palette 76/118

NEET 2012 MCQ

Widal Test is carried out to test :

A

HIV/AIDS

B

Typhoid fever

C

Malaria

D

Diabetes mellitus

Question 77: Palette 77/118

NEET 2012 MCQ

In which one of the following options the two examples are correctly matched with their particular type of immunity?

A

Examples	Types of immunity
Polymorphonuclear leukocytes and monocytes	Cellular barriers

B

Examples	Types of immunity
Anti-tetanus and antisnake bite injection	Active immunity

C

Examples	Types of immunity
Saliva in mouth and Tear in eyes	Physical barriers

D

Examples	Types of immunity
Mucus coating of epithelium lining the urinogenital tract-and the HCl in stomach	Physiological barriers

Question 78: Palette 78/118

NEET 2011 MCQ

Common cold is not cured by antibiotics because it is :

A

caused by a Gram-positive bacterium

B

caused by a Gram-negative bacterium

C

not an infectious disease

D

caused by a virus

Question 79: Palette 79/118

NEET 2011 MCQ

Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection ?

A

Disease $ \to $ Pneumonia, Causative Organisms $ \to $ Streptococcus pneumoniae, Mode of Infection $ \to $ Droplet infection

B

Disease $ \to $ Malaria, Causative Organisms $ \to $ Plasmodium vivax, Mode of Infection $ \to $ Bite of male Anopheles mosquito

C

Disease $ \to $ Elephantiasis , Causative Organisms $ \to $ Wuchereria bancrofti, Mode of Infection $ \to $ With infected water and food

D

Disease $ \to $ Typhoid , Causative Organisms $ \to $ Salmonella typhi, Mode of Infection $ \to $ With inspired air

Question 80: Palette 80/118

NEET 2011 MCQ

At which stage of HIV infection does one usually show symptoms of AIDS?

A

When the infecting retrovirus enters host cells

B

When viral DNA is produced by reverse trancriptase

C

When HIV replicates rapidly in helper T-lymphocytes and damages large number of these

D

Within 15 day of sexual contact with an infected person

Question 81: Palette 81/118

NEET 2011 MCQ

Where will you look for the sporozoites of the malarial parasite ?

A

red blood corpuscles of humans suffering from malaria

B

spleen of infected humans

C

Salivary glands of freshly moulted female Anopheles mosquito

D

Saliva of infected female Anopheles mosquito

Question 82: Palette 82/118

NEET 2011 MCQ

A certain patient is suspected to be suffering from Acquired Immuno Deficiency Syndrome. Which diagnostic technique will you recommend for its detection?

A

ELISA

B

MRI

C

Ultra sound

D

WIDAL

Question 83: Palette 83/118

NEET 2011 MCQ

Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?

A

Epithelium of urogenital tract

B

Tears

C

Monocytes

D

Skin

Question 84: Palette 84/118

NEET 2010 MCQ

Which one of the following techniques is safest for the detection of cancers ?

A

Computed tomography (CT)

B

Magnetic resonance imaging (MRI)

C

Histopathological studies

D

Radiography (X-ray)

Question 85: Palette 85/118

NEET 2010 MCQ

A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when

A

the parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs.

B

the trophozoites reach maximum growth and give out certain toxins

C

the sporozoites released from RBCs are being rapidily killed and broken down inside spleen

D

the microgametocytes and megagametocytes are being destroyed by the WBCs.

Question 86: Palette 86/118

NEET 2010 MCQ

Widal test is used for the diagnosis of –

A

Tuberculosis

B

Malaria

C

Typhoid

D

Pneumonia

Question 87: Palette 87/118

NEET 2010 MCQ

Which one of the following statements is correct with respect to AIDS ?

A

The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers

B

AIDS patients are being fully cured cent per cent with proper care and nutrition

C

The HIV can be transmitted through eating food together with an infected person

D

Drug addicts are least susceptible to HIV infection

Question 88: Palette 88/118

NEET 2010 MCQ

Ringworm in humans is caused by :

A

Fungi

B

Viruses

C

Bacteria

D

Nematodes

Question 89: Palette 89/118

NEET 2010 MCQ

Infectious proteins are present in –

A

Viroids

B

Gemini viruses

C

Satellite viruses

D

Prions

Question 90: Palette 90/118

NEET 2010 MCQ

Select the correct statement from the ones given below :

A

Cocaine is given to patients after surgery as it stimulates recovery

B

Chewing tobacco lowers blood pressure and heart rate

C

Barbiturates when given to criminals make them tell the truth

D

Morphine is often given to persons who have undergone surgery as a pain killer

Question 91: Palette 91/118

NEET 2009 MCQ

Which one of the following statement is correct ?

A

Patients who have undergone surgery are given cannabinoids to relieve pain.

B

Heroin accelerates body functions.

C

Malignant tumours may exhibit metastasis

D

Benign tumours show the property of metastasis

Question 92: Palette 92/118

NEET 2009 MCQ

Which of following is a pair of viral diseases ?

A

Ringworm, AIDS

B

Common Cold, AIDS

C

Typhoid, Tuberculosis

D

Dysentery, Common Cold

Question 93: Palette 93/118

NEET 2008 MCQ

Which one of the following is the correct statement regarding the particular psychotropic drug specified ?

A

Hashish causes after thought perceptions and hallucinations

B

Morphine leads to delusions and disturbed emotions

C

Opium stimulates nervous system and causes hallucinations

D

Barbiturates cause relaxation and temporary euphoria

Question 94: Palette 94/118

NEET 2008 MCQ

Match the disease in Column I with the appropriate items (pathogen/ prevention/ treatment) in Column II.

Column I	Column II
(A) Amoebiasis	(i) Treponema pallidium
(B) Diphtheria	(ii) Use only sterilized food
(C) Cholera	(iii) DPT Vaccine
(D) Syphilis	(iv) Use oval rehydration

A

A = (ii), B = (iv), C = (i), D = (iii)

B

A = (i), B = (ii), C = (iii), D = (iv)

C

A = (ii), B = (i), C = (iii), D = (iv)

D

A = (ii), B = (iii), C = (iv), D = (i)

Question 95: Palette 95/118

NEET 2007 MCQ

Increased asthmatic attacks in certain seasons are related to:

A

Eating fruits preserved in tin containers

B

Inhalation of seasonal pollen

C

Low temperature

D

Hot and humid environmen

Question 96: Palette 96/118

NEET 2007 MCQ

If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?

A

Serum albumins

B

Fibrinogen in the plasma

C

Serum globulins

D

Haemocytes

Question 97: Palette 97/118

NEET 2007 MCQ

Lysozyme that is present in perspiration, saliva and tears, destroys:

A

Certain types of bacteria

B

Most virus – infected cells

C

All viruses

D

Certain fungi

Question 98: Palette 98/118

NEET 2006 MCQ

The causative agent of mad-cow disease is a-

A

Virus

B

Bacterium

C

Prion

D

Worm

Question 99: Palette 99/118

NEET 2006 MCQ

A person showing unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from-

A

Mood disorders

B

Addictive disorders

C

Schizophrenia

D

Borderline Personality Disorder (BPD)

Question 100: Palette 100/118

NEET 2006 MCQ

Antibodies in our body are complex-

A

Prostaglandins

B

Steroids

C

Glycoproteins

D

Lipoproteins

Question 101: Palette 101/118

NEET 2006 MCQ

The bacterium (Clostridium botulinum) that causes botulism is-

A

A facultative aerobe

B

An obligate aerobe

C

A facultative anaerobe

D

An obligate anaerobe

Question 102: Palette 102/118

NEET 2006 MCQ

HIV that causes AIDS, first starts destroying

A

Helper T-lymphocytes

B

B-lymphocytes

C

Leucocytes

D

Thrombocytes

Question 103: Palette 103/118

NEET 2005 MCQ

Damage to thymus in a child may lead to

A

A reduction in stem cell production

B

Loss of cell mediated immunity

C

A reduction in haemoglobin content of blood

D

Loss of antibody mediated immunity

Question 104: Palette 104/118

NEET 2005 MCQ

Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness ?

A

Hashish

B

Amphetamines

C

Morphine

D

Valium

Question 105: Palette 105/118

NEET 2004 MCQ

Which one of the following is not correctly matched ?

A

Anopheles culifaciens – Leishmaniasis

B

Glossina palpalis – Sleeping sickness

C

Culex pipiens – Filariasis

D

Aedes aegypti – Yellow fever

Question 106: Palette 106/118

NEET 2003 MCQ

Short-lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorised as :-

A

Passive immunity

B

Cellular immunity

C

Innate non-specific immunity

D

Active immunity

Question 107: Palette 107/118

NEET 2003 MCQ

Christmas disease is another name for : -

A

Hepatitis B

B

Sleeping sickness

C

Haemophilia B

D

Down's syndrome

Question 108: Palette 108/118

NEET 2003 MCQ

Carcinoma refers to : -

A

Malignant tumours of the colon

B

Benign tumours of the connective tissue

C

Malignant tumours of the connective tissue

D

Malignant tumours of the skin or mucous membrane

Question 109: Palette 109/118

NEET 2002 MCQ

Cancerous cells can easily be destroyed by radiations due to : -

A

Fast mutation

B

Lack of oxygen

C

Rapid cell division

D

Lack of nutrition

Question 110: Palette 110/118

NEET 2001 MCQ

Which one of the following is correct match ?

A

Bhang – Analgesic

B

Cocaine – opiatic narcotic

C

Morphine – Hallucinogenic

D

Reserpine – Tranquilliser

Question 111: Palette 111/118

NEET 2001 MCQ

Salmonella is related with : -

A

T.B.

B

Tetanus

C

Typhoid

D

Polio

Question 112: Palette 112/118

NEET 2001 MCQ

Interferons are synthesized in response to

A

Bacteria

B

Mycoplasma

C

Viruses

D

Fungi

Question 113: Palette 113/118

NEET 2001 MCQ

L.S.D. is : -

A

Stimulant

B

Tranquiliser

C

Hallucinogenic

D

Sedative

Question 114: Palette 114/118

NEET 2001 MCQ

Reason of lung cancer is : -

A

Calcium fluoride

B

Cement factory

C

Coal mining

D

Bauxite mining

Question 115: Palette 115/118

NEET 2001 MCQ

Which of the most infectious disease ?

A

AIDS

B

Malaria

C

Hepatitis -B

D

Cough and cold

Question 116: Palette 116/118

NEET 2000 MCQ

Which is showing accurate pairing ?

A

Gonorrhoea - Leishmania denovoni

B

Syphilis - Treponema pallidum

C

Typhoid – Mycobacterium leprae

D

AIDS - Bacillus conjugalis

Question 117: Palette 117/118

NEET 2000 MCQ

Saline solution is given to patients of Cholera because

A

NaCl produces energy

B

Na⁺ prevents water loss from body

C

NaCl is antibacterial

D

NaCl function as regulatory material

Question 118: Palette 118/118

NEET 2000 MCQ

Which disease of man is similar with cattle's, bovine spongyform encephalopathy ?

A

Spongiocitis of cerebrum

B

Encephalitis

C

Spondylitis

D

Jecob-crutzfelt disease