Plant Growth and Development Questions and Answers Part-8

1.Identify the part of A, b and C in this figure.
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a) A–Water habitat, B–Juvenile, C–Terrestrial habitat
b) A–Juvenile, B–Terrestrial habitat, C–Water habitat
c) A–Terrestrial habitat, B–Juvenile, C–Water habitat
d) A–Juvenile, B–Water habitat, C–Terrestrial habitat

Answer: c
Explanation: A–Terrestrial habitat, B–Juvenile, C–Water habitat

2.Cells positioned away from root apical meristems, differentiate as
a) Epidermis
b) root cap
c) Both (a) and (b)
d) None of these

Answer: b
Explanation: Root cap

3. All those changes which an organism goes through during its life cycle from germination of the seed to senescence is termed as
a) Growth
b) Differentiation
c) Development
d) None of these

Answer: c
Explanation: Development

4. On whose response the plasts follow different pathways to form different kind of structures?
a) Environment
b) Phases of life
c) Both (a) and (b)
d) None of these

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

5.The ability of plants to follow different pathways in response to environment or phases of life to form different kind of structures is called?
a) Adaptation
b) Differentiation
c) Maturation
d) Plasticity

Answer: d
Explanation: Plasticity

6.In which of the following plant the leaves of juvenile plant are different in shape than those in mature plants?
a) Cotton
b) Coriander
c) Larkspur
d) All of these

Answer: d
Explanation: All of these

7. Leaves of which plant show environmental heterophylly?
a) Cotton
b) Coriander
c) Larkspur
d) Buttercup

Answer: d
Explanation: Buttercup

8.The phenomenon of environmental heterophyll is also called
a) Adaptation
b) Maturation
c) Plasticity
d) Growth

Answer: c
Explanation: The phenomenon of environmental heterophyll is also called Plasticity.

9. What is the sum of growth and differentiation?
a) Plasticity
b) Development
c) Maturation
d) All of these

Answer: b
Explanation: Development

10. Development in plants is mainly controlled by ________
a) Intrinsic factor
b) Extrinsic factor
c) Both (a) and (b)
d) None of these

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