Question 91 markMCQSection A

Bryophyllum produces new plant through:

How do Organisms Reproduce?
Vegetative Propagation

Options

(A)Apical buds formed on the tip of the plant
(B)Vegetative buds produced in the notches of the leaf
(C)Flowers produced in the notches of the branches
(D)Fruits formed on the branches of the plant

Official answer

B

Answer keywords:Bryophyllumvegetative budsnotchesleaf marginvegetative propagation

Hint

Recall Figure 7.5 in the chapter — "Leaf of Bryophyllum with buds."

Quick oral answer

Bryophyllum reproduces vegetatively — tiny buds form in the notches along its leaf margins, and when these fall onto soil, each one grows into a new, genetically similar plant.

Common mistakes

  1. 1.Confusing vegetative buds with flower buds
  2. 2.Assuming the buds arise at the shoot tip rather than the leaf margin

Analysis and explanation

The NCERT chapter states: "buds produced in the notches along the leaf margin of Bryophyllum fall on the soil and develop into new plants" (Section 7.2.5, Fig. 7.5). This is a classic example of vegetative propagation through leaves.


  • (A) Apical buds formed on the tip of the plant — incorrect. Bryophyllum's reproductive buds are not apical (tip) buds; they arise specifically in the notches along the leaf margin, not at the plant's growing tip.
  • (B) Vegetative buds produced in the notches of the leaf — correct. This exactly matches the text: buds form in the leaf-margin notches, fall to the soil, and grow into new independent plants.
  • (C) Flowers produced in the notches of the branches — incorrect. This confuses vegetative (bud) propagation with sexual reproduction via flowers; Bryophyllum's propagation here is asexual, and the structures are on leaves, not branches.
  • (D) Fruits formed on the branches of the plant — incorrect. Fruits result from sexual reproduction (fertilised ovary) and are irrelevant to Bryophyllum's characteristic vegetative propagation method.

Interesting facts

Bryophyllum is a well-known example of a plant that can propagate itself vegetatively without needing seeds, similar in principle to potato tubers reproducing via 'eyes' (notches with buds), as explored in Activity 7.5.

Question details

Q9 of 39 questions

Board
CBSE
Class
Class 10
Subject
Science
Year
2025
Section
Section A
Marks
1
Type
MCQ
Chapter
How do Organisms Reproduce?
Topic
Vegetative Propagation
Bloom's level
Remember
Syllabus topic
Modes of reproduction used by single organisms — Vegetative propagation

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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 "How do Organisms Reproduce?" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Vegetative Propagation" 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.