PLANT GROWTH AND MOVEMENTS (II) biology MCQ’s questions answers

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PLANT GROWTH AND MOVEMENTS (II)

Question 16 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following organic substance is growth inhibitor?
A
GA
B
ABA
C
IAA
D
IBA
Question 17 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Name the hormone responsible for activity of chlorophyll in leaves.
A
Gibberrelin
B
Cytokinin
C
ABA
D
Ethylene
Question 18 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of dormancy is found when seed is impermeable to water or gaseous exchange?
A
Mechanical dormancy
B
External dormancy
C
Physical dormancy
D
Chemical dormancy
Question 19 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following plant shows rotational movement?
A
Chlamydomonas
B
Hydrilla
C
Volvox
D
Mucilagenous fungi
Question 20 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Read the following statements carefully and answer the correct one from the codes given below:
(I) Growth is unidimensional, permanent and reversible change.
(II) Growth is unidimensional, permanent and irreversible change.
(III) Growth is polydimensional, permanent and irreversible change.
(IV) Growth increases the dry weight of growing part.
A
I and II are correct
B
II and III are correct
C
III and IV are correct
D
All of these are correct
There are 20 questions to complete.

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