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Plant Physiology

NEET level, single correct, medium

3 of 3

Question 3 of 3

The gaseous plant hormone that promotes fruit ripening and senescence is:

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Answer: (C) Ethylene

Ethylene (

C_2H_4

) stimulates respiratory climacteric and fruit ripening.

NEET question paper PDF

The full paper for each year. Open it on this page or download it.

NEET 2025 question paper (Code 45)

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More Biology practice

Plant PhysiologyIn the given chloroplast diagram, light-dependent phosphorylation reactions take place in the thylakoids (Granum), while enzymatic dark reactions (Calvin cycle) occur in:
Plant PhysiologyIn $C_4$ plants, the primary carbon dioxide acceptor is:
Genetics & EvolutionCrossing over between non-sister chromatids of homologous chromosomes occurs during:
Plant Anatomy & ReproductionCasparian strips in plant roots are composed of suberin and are found in the:
Plant Anatomy & ReproductionDouble fertilization is a unique feature of:
Genetics & EvolutionThe genotypic ratio of a typical monohybrid cross in F2 generation is:

NEET Biology practice question on Plant Physiology, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.