In this page we have Class 10 Science CONTROL AND COORDINATION Practice Worksheet for Biology . Hope you like them and do not forget to like , social shar
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Multiple choice questions
. Response in plant are regulated by
. Animals have specialized protein that helps in movement. Plant show movement due to change in
A. nature of plasma membrane
B. amount of water
C. amount of enzyme
D. none of these
. Movement of pollen tubes towards ovule is an example of
. Unlike tropisms, nastic movement are in response to
C. Non- directional stimuli
D. Directional stimuli
. Roots grow downward as a ________response.
A. Positive phototropic
B. Negative phototropic
C. Negative geotropic
D. All of these
. Ripening of fruits, such as bananas, is hastened by
. The bending of shoot tip towards light is known as
. Drooping of leaf in Mimosa plant is
A. due to dependence on growth
B. movement independent of growth
C. due to loss of turgidity
D. Both (B) & (C)
. Which plant hormone is also called as growth inhibitor?
C. abscisic acid
D. ascorbic acid
. Nastic movements
A. are nondirectional
B. are directional
C. may or may not be directional
D. none of these
. Why tropic movement are mostly irreversible?
. How auxin helps in Phototropism.
. What is significance of unidirectional light in experiment of Phototropism.
. Why response of plants is slower than animals?
. How we can make plant more bushy?
. Name the plant hormone which is used as weedicine.
. Expand the following terms:
(i)GA (ii) 2,4D (iii) ABA (iv) IAA (v) IBA
. Why is abscisic acid known as stress hormone?
. Distinguish between nastic and tropic movement.
. If one fruit is ripened and if it is kept in a basket of raw fruits, then what will happen? What is the cause of it?
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