Plant Growth and Development NEET PYQs

Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: ATP is used at two steps in glycolysis.
Reason R: First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6- phosphate into fructose-1-6-diphosphate.
In the light of the above statements, choose the correct answer from the options given below is true,

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants :

Which one of the following plants does not show plasticity?

The gaseous plant growth regulator is used in plants to:

The site of perception of light in plants during photoperiodism is:

The plant hormone used to destroy weeds in a field is:

Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:

Inhibitory substances in dormant seeds cannot be removed by subjecting seeds to:

Match the following concerning the activity/function and the phytohormone involved:

(A)Fruit ripener	(I)Abscisic acid
(B)Herbicide	(II)GA3
(C)Bolting agent	(III)2, 4-D
(D)Stress hormone	(IV)Ethephon

Select the correct option from following: