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Biological Classification

1051 Questions Start Allen Test
All Exams Allen Errorless
Q826 Allen PYQ MCQ
Which of the following is correct about viroids?
A.
They have free DNA without protein coat.
B.
They have RNA with protein coat.
C.
They have free RNA without protein coat.
D.
They have DNA with protein coat.
Q827 Allen PYQ MCQ
Which of the following statements about inclusion bodies is incorrect ?
A.
These represent reserve material in cytoplasm.
B.
They are not bound by any membrane.
C.
These are involved in ingestion of food particles.
D.
They lie free in the cytoplasm.
Q828 Allen PYQ MCQ
Inclusion bodies of blue- green, purple and green photosynthetic bacteria are :-
A.
Contractile vacuoles
B.
Gas vacuoles
C.
Centrioles
D.
Microtubules
Q829 Allen PYQ MCQ
Which of the following is incorrect about Cyanobacteria ?
A.
They are photoautotrophs.
B.
They lack heterocyst.
C.
They often form blooms in polluted water bodies.
D.
They have chlorophyll A similar to green plants.
Q830 Allen PYQ MCQ
Which of the following statements is correct?
A.
Fusion of two cells is called Karyogamy.
B.
Fusion of protoplasm between two motile on non-motile gametes is called plasmogamy.
C.
Organisms that depend on living plants are called saprophytes.
D.
Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells.
Q831 Allen PYQ MCQ
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.
Both Statement-I and II are incorrect.
B.
Statement-I is correct but Statement-II is incorrect.
C.
Statement-I is incorrect but Statement-II is correct.
D.
Both Statement-I and II are correct.
Q832 Allen PYQ MCQ
Which of the following is a correct statement?
A.
Bacteria are exclusively heterotrophic organisms.
B.
Slime moulds are saprophytic organisms classified under Kingdom Monera.
C.
Mycoplasma have DNA, Ribosome and cell wall.
D.
Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
Q833 Allen PYQ MCQ
Mad cow disease in cattle and Cr Jacob disease in humans are due to infection by______
A.
Bacterium
B.
Virus
C.
Viroid
D.
Prion
Q834 Allen PYQ Match the Columns
Match Column-I with Column-II.
Column-IColumn-II
(a)Ringworm
(b)Filariasis
(c)Malaria
(d)Pneumonia
(i)Haemophilus influenzae
(ii)Trichophyton
(iii)Wuchereria bancrofti
(iv)Plasmodium vivax
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
Q835 Allen PYQ MCQ
Statement-I : RNA mutates at a faster rate. Statement-II : Viruses having RNA genome and shorter life span mutate and evolve faster. In the light of the above statements, choose the correct answer from the options given below :-
A.
Both Statement-I and Statement-II are false.
B.
Statement I is true but Statement II is false.
C.
Statement I false but Statement II is true.
D.
Both Statement I and Statement II are true. BBC391
Q836 Allen PYQ MCQ
Which one of the following is not a criterion for classification of fungi?
A.
Morphology of mycelium
B.
Mode of nutrition
C.
Mode of spore formation
D.
Fruiting body
Q837 Allen PYQ Match the Columns
Match Column-I with Column-II.
Column-IColumn-II
(a)Rhizopus
(b)Ustilago
(c)Puccinia
(d)Agaricus
(i)Mushroom
(ii)Smut fungus
(iii)Bread mould
(iv)Rust fungus
A.
a-iii, b-ii, c-iv, d-i
B.
a-i, b-iii, c-ii, d-iv
C.
a-iii, b-ii, c-i, d-iv
D.
a-iv, b-iii, c-ii, d-i
Q838 Allen PYQ MCQ
Match Column-I with Column-II.
Column-IColumn-II
(a)Euglenoid
(b)Dinoflagellate
(c)Slime mould
(d)Plasmodium
(i)Parasitic
(ii)Saprophytic
(iii)Photosynthetic
(iv)Switching between photosynthetic and heterotrophic mode
A.
a-iii, b-iv, c-ii, d-i
B.
a-iv, b-ii, c-i, d-iii
C.
a-iv, b-iii, c-ii, d-i
D.
a-iv, b-ii, c-iii,d-i
Q839 Allen (A) NCERT BASED QUESTIONS MCQ
Archaebacteria differ from other bacteria in having a:-
A.
Different cell wall and cell membrane structure
B.
Different cellular organization
C.
Parasitic nature
D.
Both (2) and (3)
Q840 Allen (A) NCERT BASED QUESTIONS MCQ
Nitrogen fixing cyanobacteria are :-
A.
Rhizobium, Nostoc
B.
Rhizobium, Anabaena
C.
Nostoc, Anabaena
D.
Anabaena, Azolla
Q841 Allen (A) NCERT BASED QUESTIONS MCQ
The vast majority of bacteria are :-
A.
Symbiotic
B.
Autotrophic
C.
Heterotrophic
D.
Nitrogen fixing
Q842 Allen (A) NCERT BASED QUESTIONS MCQ
Which character indicates that Cyanobacteria are similar to higher green plants ?
A.
Type of cell wall
B.
Nitrogen fixation ability
C.
Presence of chlorophyll 'a'
D.
Presence of gelatinous sheath
Q843 Allen (A) NCERT BASED QUESTIONS MCQ
Typhoid and tetanus are caused by :-
A.
Bacteria
B.
Virus
C.
Viroids
D.
Fungi
Q844 Allen (A) NCERT BASED QUESTIONS MCQ
Which one of the following prokaryotes lack cell wall?
A.
Virus
B.
Cyanobacteria
C.
Mycoplasma
D.
Protozoa
Q845 Allen (A) NCERT BASED QUESTIONS MCQ
According to five kingdom classification Protista includes :-
A.
Chrysophytes, Dinoflagellates, Protozoans
B.
Diatoms, Euglenoids, Virus
C.
Dinoflagellates, Protozoans, Red algae
D.
Chrysophytes, Bryophytes, Protozoans, Slime mould
Q846 Allen (A) NCERT BASED QUESTIONS MCQ
Which organisms have silica in their cell wall?
A.
Dinoflagellates
B.
Slime mould
C.
Diatoms
D.
Euglenoids
Q847 Allen (A) NCERT BASED QUESTIONS MCQ
Which organism is responsible for red surface of sea?
A.
Euglena
B.
Gonyaulax
C.
Amoeba
D.
Paramoecium
Q848 Allen (A) NCERT BASED QUESTIONS MCQ
Which unicellular, photosynthetic eukaryote lacks cell wall ?
A.
Mycoplasma
B.
Amoeba
C.
Euglena
D.
Slime mould
Q849 Allen (A) NCERT BASED QUESTIONS MCQ
Select incorrect statement about fungi ?
A.
The cell walls are composed of chitin and polysaccharides
B.
These are heterotrophic organisms
C.
They are autotrophic organism
D.
They are absorptive in nature
Q850 Allen (A) NCERT BASED QUESTIONS MCQ
In fungi, vegetative reproduction takes place by:-
A.
Fragmentation
B.
Conidia
C.
Zygospore
D.
Oospore