Question

Select from the following a plant hormone which promotes cell division.

• A. Gibberellins
• B. Auxins
• C. Abscissic Acid
• D. Cytokinins

Answer 1

The Correct Option is D

Phase 1: Plant Hormone Fundamentals:
Plant hormones are vital chemical messengers regulating plant growth, development, and environmental responses. Each hormone has distinct functions in processes like growth initiation, flowering, fruit development, and adaptation to external cues.

Phase 2: Determining the Cell Division Promoter:
From the array of plant hormones, the one principally responsible for stimulating cell division is identified through examining their roles:

- Auxins: Predominantly stimulate cell elongation; cell division is not their primary function.
- Gibberellins: Facilitate cell elongation and are integral to seed germination and stem elongation.
- Cytokinins: Directly promote cell division. Their functions include promoting lateral bud growth and new tissue formation.
- Abscisic acid: Primarily mediates stress responses and inhibits overall growth.

Phase 3: Identification:
Cytokinins are the plant hormones that promote cell division.