EASY
Earn 100

Is photonasty a growth-related movement?

Important Questions on Control and Coordination

MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants
What is hydrotropism? Design an experiment to demonstrate this phenomenon. 
EASY
Science>Biology>Control and Coordination>Coordination in Plants

The changes that are likely to happen in the plant in the following picture:

Question Image

(A) A hormone abscisic acid is synthesised at the shoot tip.

(B) When light is coming from one side of the plant, auxin diffuses towards the shady side of the plant.

(C) Abscisic acid helps the cells to grow longer.

(D) Cells grow longer on the side of the shoot which is away from light.

Select the correct option.

EASY
Science>Biology>Control and Coordination>Coordination in Plants
Expand GA.
MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants

Define tropism. Explain four kinds of tropism with one example of each. 

 

EASY
Science>Biology>Control and Coordination>Coordination in Plants
What is apical dominance? Which hormone shows antagonistic effects of apical dominance?
EASY
Science>Biology>Control and Coordination>Coordination in Plants
Which one of the following is a natural growth inhibitor?
MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants
Describe different types of plant movements with suitable examples.
EASY
Science>Biology>Control and Coordination>Coordination in Plants
Name the hormone except for auxin and cytokinins, which is capable of inducing parthenocarpy.
EASY
Science>Biology>Control and Coordination>Coordination in Plants
Define phototropism. 
EASY
Science>Biology>Control and Coordination>Coordination in Plants
What are the types of phytohormones? Mention their names.
EASY
Science>Biology>Control and Coordination>Coordination in Plants
How Gibberellins promote the parthenocarpy?
EASY
Science>Biology>Control and Coordination>Coordination in Plants
Name the phytohormones that control bolting & morphogenesis.
EASY
Science>Biology>Control and Coordination>Coordination in Plants
What do you mean by seismonastic movement? Give an example.
MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants
Describe the immediate response to stimulus in a plant with a suitable example.
EASY
Science>Biology>Control and Coordination>Coordination in Plants
Give an example for: A plant that responds when touched: _____ (Sundew/Touch-me-not/Pitcher plant)
MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants
Name the hormone synthesized at shoot tips. How does it help to respond to light?         
EASY
Science>Biology>Control and Coordination>Coordination in Plants
Design an experiment to demonstrate chemotropism.
MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants
What do you mean by tropic & nastic movement?
MEDIUM
Science>Biology>Control and Coordination>Coordination in Plants
What are nastic and curvature movements? Give one example of each.
EASY
Science>Biology>Control and Coordination>Coordination in Plants
What are plant hormones?