Q9
1 markMCQSection A

The plant hormone whose concentration stimulates the cells to grow longer on the side of the shoot which is away from light is :

Control and Coordination
Plant Hormones

Options

(A)Cytokinins
(B)Gibberellins
(C)Adrenaline
(D)Auxins
Official Answer

Auxins

Auxinsplant hormonesphototropism

Marking Scheme

  • 11 mark

Hint

Auxins are responsible for phototropism in plants.

Quick Oral Answer

Auxins are plant hormones that stimulate cell elongation and cell division, causing the stem to bend towards light.

Analysis & Explanation

Auxins are plant hormones that stimulate cell elongation and cell division. They are responsible for phototropism, which is the growth of plants towards light. When light is shone on a plant, auxins accumulate on the side of the stem away from the light, causing the cells to grow longer and the stem to bend towards the light.

Common Mistakes

  1. 1Cytokinins
  2. 2Gibberellins
  3. 3Adrenaline

Interesting Facts

Auxins are also involved in root growth and cell differentiation.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2025?

This question carries 1 mark in the CBSE Class 10 Science 2025 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Control and Coordination" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Plant Hormones" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2025 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2025 paper.