1. The ability of proteins to move laterally within the membrane is measured as
a) Mobility
b) Flexibility
c) Fluidity
d) None of these
Explanation: Fluidity
2. For what reason, the fluid nature of membrane is important?
a) Cell growth
b) Secretions
c) Endocytosis
d) All of these
Explanation: All of these
3. The most important function of plasma membrane is that it
a) Divides the cell
b) Gives shape to the cell
c) Transports the molecules across
d) Both (a) and (b)
Explanation: The most important function of plasma membrane is that it transports the molecules across
4. In which kind of transport, the molecules move across without the utilization of energy?
a) Passive transport
b) Osmosis
c) Both (a) and (b)
d) Active transport
Explanation: Both (a) and (b)
5. Movement of water across the plasma membrane occurs by
a) Passive transport
b) Osmosis
c) Active transport
d) All of these
Explanation: Movement of water across the plasma membrane occurs by osmosis
6. In which kind of transport, the molecules will go against the concentration gradient?
a) Passive transport
b) Active transport
c) Facilitated transport
d) All of these
Explanation: Active transport
7. In which of the following does active transport take place?
a) Pumps
b) Carrier protein transport
c) Ion channels
d) Diffusion
Explanation: Pumps
8. The functions of cell wall in eukaryotic cells
a) Give shape to cell
b) Prevent from mechanical damage
c) Protects from infection
d) All of these
Explanation: All of these
9. Which of the following organisms have cell wall made up of cellulose, galactans, mannans,
and minerals like calcium carbonates?
a) Fungi
b) Plants
c) Algae
d) All of these
Explanation: Algae
10. Which of the following organisms have cell wall made up of cellulose, hemicelluloses, pectins
and proteins?
a) Fungi
b) Plants
c) Algae
d) All of these
Explanation: Plants