Cells UPSC Questions

Biology

Cells MCQ Questions


1.
Who discovered the live cell?
A.
Robert Hooke
B.
Anton Von Leeuwenhoek
C.
Robert Brown
D.
Theodore Schwann
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ANSWER :
B. Anton Von Leeuwenhoek
2.
Which of the following is a characteristic of prokaryotic cells?
A.
Presence of membrane-bound organelles
B.
DNA enclosed in a nucleus
C.
Presence of mesosome
D.
Presence of mitochondria
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ANSWER :
C. Presence of mesosome
3.
What is the function of plasmodesmata in plant cells?
A.
Protein synthesis
B.
DNA replication
C.
Connecting cytoplasm of adjacent cells
D.
Secretion of enzymes
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ANSWER :
C. Connecting cytoplasm of adjacent cells
4.
Which cell organelle is known as the 'powerhouse of the cell'?
A.
Nucleus
B.
Chloroplast
C.
Mitochondrion
D.
Golgi apparatus
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ANSWER :
C. Mitochondrion
5.
Which of the following statements are correct regarding the general difference between plant and animal cells?
1. Plant cells have cellulose cell walls whilst animal cells do not.
2. Plant cells do not have plasma membranes, unlike animal cells which do.
3. Mature plant cell has one large vacuole whilst animal cell has many small vacuoles.
Select the correct answer using the code given below:
UPSC - 2020
A.
1 and 2 only
B.
2 and 3 only
C.
1 and 3 only
D.
1, 2 and 3
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ANSWER :
C. 1 and 3 only
6.
The fluid mosaic model of the plasma membrane was proposed by:
A.
Robert Hooke
B.
Singer and Nicolson
C.
Schleiden and Schwann
D.
Rudolf Virchow
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ANSWER :
B. Singer and Nicolson