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

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PLANT GROWTH AND MOVEMENTS (II)

Question 6 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following group show viviparous germination?
A
Soyabean and Xanthium
B
Rhizophora and Avicinnia
C
Maize and Bean
D
Orchid and Rhizophora
Question 7 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A : Flowering is natural phenomenon in plants.
R : If photoperiodism is fixed, increases flowering in plants
A
A and R both correct, R is explanation of A.
B
A and R both correct but R is not explanation A.
C
A = correct, R = false
D
A = false, R = correct
Question 8 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is true about phytochrome?
A
Pfr absorbs red light and becomes Pr
B
Pfr absorbs yellow light and becomes Pr.
C
Pr absorbs yellow light and becomes Pfr
D
Pr absorbs red light and becomes Pfr
Question 9 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How gibberrelin accelerates seed germination? (AIIMS 2005)
A
Abscisic acid
B
Absorption of water from hard seed coat
C
By the synthesis of digestive juice
D
By effecting rate of cell division
Question 10 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Ethylene is responsible for
A
Flowering
B
Formation of fruits
C
Disease in roots
D
Ripping of fruits
There are 10 questions to complete.

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