Cell Biology AFCAT Questions

AFCAT Biology

Cell Biology MCQ Questions


13.
The genetic material in a prokaryotic cell is:
A.
Multiple linear chromosomes
B.
Linear DNA enclosed in a nucleus
C.
A single circular DNA molecule not enclosed by a nuclear membrane
D.
RNA in the cytoplasm
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ANSWER :
C. A single circular DNA molecule not enclosed by a nuclear membrane
14.
Plasmids in bacteria are:
A.
Protein synthesis sites
B.
Cell wall components
C.
Lipid storage bodies
D.
Small circular DNA outside the genomic DNA
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ANSWER :
D. Small circular DNA outside the genomic DNA
15.
Mesosomes are characteristic of:
A.
Prokaryotic cells
B.
Animal cells
C.
Fungal cells
D.
Plant cells
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ANSWER :
A. Prokaryotic cells
16.
Mesosomes help in all of the following EXCEPT:
A.
Respiration
B.
Photosynthesis
C.
Cell wall formation
D.
DNA replication
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ANSWER :
B. Photosynthesis
17.
Membranous extensions containing pigments found in cyanobacteria are called:
A.
Mesosomes
B.
Cristae
C.
Thylakoids
D.
Chromatophores
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ANSWER :
D. Chromatophores
18.
Bacteria that take up Gram stain are called:
A.
Gram negative
B.
Acid fast
C.
Gram positive
D.
Gram neutral
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ANSWER :
C. Gram positive