Cell: The Unit of Life Questions and Answers Part-2

1. ‘Omnis cellula e cellula’ was given in the year _________
a) 1756
b) 1855
c) 1945
d) 1839

Answer: b
Explanation: ‘Omnis cellula e cellula’ was given in the year 1855

2. Who was the one to describe that cells divided and new cells are formed from pre-existing cells?
a) Schleiden
b) Schwann
c) Virchow
d) All of these

Answer: c
Explanation: Virchow

3. Which of the following statement is not a part of final cell theory?
a) Cell has a thin outer layer called plasma membrane.
b) All living organisms are made up of cells and products of cells
c) All cells arise from pre-existing cells.
d) All of these

Answer: a
Explanation: Cell has a thin outer layer called plasma membrane.

4. What is the outer covering of typical plant cell?
a) Cell wall externally
b) Plasma membrane externally
c) Cell wall internally
d) Cell wall externally, plasma membrane internally

Answer: d
Explanation: Cell wall externally, plasma membrane internally

5. Identify the A, B, C and D in the given figure.
q15
a) A–WBC, B–Mesophyll cell, C–RBC, D–Columnar Epithelial cells
b) A–Columnar epithelial cells, B–Mesophyll cell, C–WBC, D–RBC
c) A–Mesophyll cell, B–WBC, C–Columnar epithelial cells, D–WBC
d) A–RBC, B–Columnar epithelial cells, C–Mesophyll Cell, D–WBC

Answer: d
Explanation: A–RBC, B–Columnar epithelial cells, C–Mesophyll Cell, D–WBC

6. In each cheek cell, there is a dense membrane bound structure which contains chromosome. This structure is
a) Endoplasmic reticulum
b) Golgi bodies
c) Nucleus
d) Mitochondria

Answer: c
Explanation: Nucleus

7. What does a nucleus of a typical animal cell contain?
a) Chromosomes
b) Genes
c) DNA
d) All of these

Answer: d
Explanation: All of these

8. The cell containing membrane bound nucleus can be called
a) Eukaryotic
b) Prokaryotic
c) Both (a) and (b)
d) None of these

Answer: a
Explanation: The cell containing membrane bound nucleus can be called Eukaryotic.

9. Identify the figure given below.
q19
a) Tracheid
b) Nerve Cell
c) Lipid bilayer
d) None of these

Answer: b
Explanation: Nerve Cell

10. If volume of the cell is filled with semi-fluid matrix called cytoplasm, what kind of cell is it?
a) Eukaryotic
b) Prokaryotic
c) Both (a) and (b)
d) None of these

Answer: c
Explanation: Both (a) and (b)