Basis of Life- Cells, Protoplasm and Tissues NDA Questions

NDA BIOLOGY

Basis of Life- Cells, Protoplasm and Tissues MCQ Questions


7.
The cell theory was formulated by:
A.
Schleiden and Schwann
B.
Robert Hooke and Robert Brown
C.
Leeuwenhoek and Flemming
D.
Virchow and Pasteur
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ANSWER :
A. Schleiden and Schwann
8.
The smallest known free-living cells are:
A.
PPLO
B.
Bacteria
C.
Mycoplasmas
D.
Viruses
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ANSWER :
C. Mycoplasmas
9.
The largest isolated single cell known is:
A.
Amoeba proteus
B.
Human nerve cell
C.
RBC of elephant
D.
Ostrich egg
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ANSWER :
D. Ostrich egg
10.
Prokaryotic cells are represented by all EXCEPT:
A.
Amoeba
B.
Blue-green algae
C.
Bacteria
D.
Mycoplasma
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ANSWER :
A. Amoeba
11.
Which of the following is absent in prokaryotic cells?
A.
Cell membrane
B.
Membrane-bound nucleus
C.
Ribosome
D.
Cell wall
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ANSWER :
B. Membrane-bound nucleus
12.
The genetic material in prokaryotic cells is:
A.
Circular DNA naked in nucleoid region
B.
Histone-wrapped chromosomal DNA
C.
RNA only
D.
Linear DNA enclosed in nuclear envelope
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ANSWER :
A. Circular DNA naked in nucleoid region