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NEET BIOLOGYPlant Growth and Development Easy

Question

Coconut milk factor is:

A

An auxin

B

A gibberellin

C

Abscisic acid

D

Cytokinin

Step-by-Step Solution

F. Skoog and his co-workers observed that callus proliferated only if the nutrient medium was supplemented with extracts like coconut milk in addition to auxins. This observation led to the discovery of Cytokinins. Specifically, a natural cytokinin named zeatin was isolated from corn-kernels and coconut milk .

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Plant Growth and Development . Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYPlant Growth and Development coconutfactor

More Plant Growth and Development Questions

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

A.Abscisic Acid
B.Indole-3-butyric Acid
C.Gibberellic Acid
D.Zeatin
EasySolve

Which one of the following growth regulators is known as the stress hormone?

A.Abscisic acid
B.Ethylene
C.GA3
D.Indole acetic acid
EasySolve

Which of the following growth regulators is an adenine derivative?

A.Auxin
B.Cytokinin
C.Ethylene
D.Abscisic acid
EasySolve

The phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as :

A.Differentiation
B.Dedifferentiation
C.Redifferentiation
D.Secondary growth
EasySolve

Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.

A.Gibberellin
B.Ethylene
C.Abscisic acid
D.Cytokinin
EasySolve

Which hormone is responsible for fruit ripening?

A.Ethylene
B.Auxin
C.Ethyl chloride
D.Cytokinin
EasySolve

Match the following concerning the activity/function and the phytohormone involved: Column-I (Activity/Function) Column-II (Phytohormone) (a) Fruit ripening (i) Abscisic acid (b) Herbicide (ii) Ethylene (c) Bolting (iii) Auxin (d) Stress hormone (iv) Gibberellic acid

A.(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
B.(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
C.(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
D.(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
EasySolve

Removal of shoot tips is a very useful technique to boost the production of tea leaves. This is because:

A.Gibberellins prevent bolting and are inactivated.
B.Auxins prevent leaf drop at early stages.
C.Effect of auxins is removed and the growth of lateral buds is enhanced.
D.Gibberellins delay the senescence of leaves.
MediumSolve

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