Biological Classification
719 Questions
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Q651
Errorless
6. Cyanobacteria/Blue green algae_Monera
MCQ
Which of the following has polar nodule on both the ends
A.
Akinetes
B.
Hormogonia
C.
Heterocysts
D.
None of these
Q652
Errorless
6. Cyanobacteria/Blue green algae_Monera
MCQ
Spirulina is a
A.
Blue green algae
B.
Fungi
C.
Pteridophyte
D.
Bryophyte
Q653
Errorless
7. Critical Thinking_Monera
MCQ
Escherichia coli has the following combination of characters
A.
Rod shaped, 1ā3 μm long, gram negative
B.
Rod shaped, 1ā 3 μm long, gram positive
C.
Spiral, 1ā3 μm long, gram negative
D.
Spiral, 1ā3 μm long, gram positive
Q654
Errorless
7. Critical Thinking_Monera
MCQ
K12 plasmid was studied first in
A.
E. coli
B.
Shigella
C.
Salmonella
D.
Eberthella
Q655
Errorless
7. Critical Thinking_Monera
MCQ
Otitis media (inflammation of middle ear) is caused by
A.
Virus
B.
Bacteria
C.
Bacteriophage
D.
Mycoplasma
Q656
Errorless
7. Critical Thinking_Monera
MCQ
Identify the A, B, C, D and E in the following diagram [NCERT Pg. No. 13]
A.
A - Cell membrane, B ā Cell wall, C ā DNA, D - Heterocyst, E - Mucilagenous sheath
B.
A ā Mucilagenous sheath, B ā Cell membrane, C - DNA, D ā Heterocyst, E - Cell wall
C.
A ā Cell wall, B ā Cell membrane, C ā DNA, D - Heterocyst, E ā Mucilagenous sheath
D.
A ā Cell wall, B ā Cell membrane, C ā Heterocyst, D ā DNA, E ā Mucilagenous sheath
Q657
Errorless
7. Critical Thinking_Monera
MCQ
Cyanobacteria are classified under [NCERT Pg. No. 12, 13]
A.
Protista
B.
Plantae
C.
Monera
D.
Algae
Q658
Errorless
7. Critical Thinking_Monera
MCQ
Given below are two statements
Statement I : Mycoplasma can pass through less than 1 micron filter size.
Statement II : Mycoplasma are bacteria with cell wall.
In the light of the above statements,
choose the most appropriate answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q659
Errorless
8. Assertion and Reason_Monera
Numerical
Assertion:The nitrogen-fixing bacteria in leguminous plant nodules live as symbionts.
Reason Leg-haemoglobinsynthesized by lequminous plants protect bacteria.
Correct Answer: A
Explanation:
Rhizobium form a symbiotic association with roots of leguminous plants producing root nodules. These bacteria reside inside the nodules and reduce atmospheric nitrogen (N2) to ammonia. The fixed nitrogen is taken up by plant. In return the plant provides nutrients both and protection to bacteria.
Q660
Errorless
8. Assertion and Reason_Monera
MCQ
Assertion:Bacteria are classified among plants. Reason:They have cell walls. [NCERT Pg. No. 13, 90]
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q661
Errorless
8. Assertion and Reason_Monera
MCQ
Assertion : Some bacteria have the capacity to retain Gram stain after treatment with acid alcohol.
Reason: They are known as Gram positive as they are attracted towards positive pole under influence of electric current.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q662
Errorless
8. Assertion and Reason_Monera
MCQ
Assertion: None autotrophic bacteria carry out chemosynthesis.
Reason: Chemosynthetic bacteria trap the small amount of energy released from inorganic compound's oxidation to use in the reactions that synthesize carbohydrates.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q663
Errorless
8. Assertion and Reason_Monera
MCQ
Assertion: Cell secretion does not occur in bacteria.
Reason:Golgi complex is absent in bacteria.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q664
Errorless
8. Assertion and Reason_Monera
MCQ
Assertion: Plasmids are double-stranded extra chromosomal DNA.
Reason: Plasmids are possessed by eukaryotic cells.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q665
Errorless
8. Assertion and Reason_Monera
MCQ
Assertion : Root nodules in leguminous plants are inhabited by Anabaena.
Reason: Leguminous plants are an example of symbiotic nitrogen fixation.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Q666
Errorless
9. Self Evaluation Test_Monera
MCQ
The bacteria which lacks flagella and moves by gliding are included in
A.
Spirochaetes
B.
Rickettsia
C.
Myxobacteria
D.
Eubacteria
Q667
Errorless
9. Self Evaluation Test_Monera
MCQ
Exotoxin is produced by
A.
Gram positive bacteria
B.
Gram negative bacteria
C.
Both
D.
None of the above
Q668
Errorless
9. Self Evaluation Test_Monera
MCQ
Which bacterium causes cotton destruction
A.
Clostridium botulinum
B.
Spirochaeta cytophaga
C.
Mycobacterium
D.
Vibrio
Q669
Errorless
10. Photosynthetic and consumer_Protists
MCQ
Planktons are organisms which [NCERT Pg. No. 14]
A.
Float on water surface
B.
Are free swimmers
C.
Are deep sea forms
D.
Are burrowing forms
Q670
Errorless
10. Photosynthetic and consumer_Protists
MCQ
Red oceanic tides can be due to
A.
Diatoms
B.
Dinophyceae
C.
Red algae
D.
Blue-green algae
Q671
Errorless
11. Protozoa_Protists
MCQ
Pseudopodia is a characteristic feature of which class
A.
Mastigophora
B.
Sarcodina
C.
Sporozoa
D.
Ciliata
Q672
Errorless
11. Protozoa_Protists
MCQ
Study the following figures and identify A, B and C
(A)
(B)
(C)
(B)
(C)
A.
A - Euglena, B ā Paramecium, C - Aspergillus
B.
A - Planaria, B - Paramecium, C - Agaricus
C.
A ā Euglena, B ā Planaria, C - Agaricus
D.
A - Euglena, B ā Paramecium, C - Agaricus
Q673
Errorless
11. Protozoa_Protists
MCQ
Relapsing malaria is due to
A.
Plasmodium falciparum and P. vivax
B.
Plasmodium ovale and P. vivax
C.
Plasmodium falciparum and P. ovale
D.
P. falciparum only
Q674
Errorless
11. Protozoa_Protists
MCQ
Entamoeba differs from Amoeba in not having
A.
Nucleus
B.
Pseudopodia
C.
Ectoplasm
D.
Contractile vacuole
Q675
Errorless
12. Critical Thinking_Protists
MCQ
Amoeba reacts
A.
Negatively to strong light and positively to weak light
B.
Positively to strong light and negatively to weak light
C.
Unaffected by light intensity
D.
Positive to both strong and weak light