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SAI International School

Std -X, Subject- BIOLOGY
Chapter- Control and Coordination
Subtopic- Coordination in Plants- II
Module- 17
Home Assignment-I
Objective- MCQ

Sl.no Questions

1 How do plants respond to stimulus in tropic movements?
a. Plants grow in a particular direction
b. Plants do not grow at all
c. Plants don't care
d. Plants care

2 Which of the following shows phototropic movement?
a Bending of stem towards a light
b. Bending of roots away from light
c. Both
d. None

3 Which part of tendril grows faster when it comes in contact with support?
a. Part of tendril away from object
b. Part of tendril in contact with object
c. Both
d. None

4 Cytokinins -
a. Induce division and inhibit ageing
b. Maintain dormancy.
c. Induce abscission
d. Inhibit cell division

5 What does hydrotropism mean?
a. Movement in response to water
b. Movement in response to light
c. Movement in response to gravity
d. Movement in response to touch

6 Which of the following is an example of chemotropism?
a. Movement of pollen tube towards chemicals produced at the stigma tip
b. Movement of stem towards light
c. Movement of roots towards water
d. Movement of tendril towards touch

7 The main function of the plant hormone called abscisic acid is to:
a. Increase the length of cells
b. Promote cell division
c. Inhibit growth
d. Promote growth of stem and roots