Q11
1 markMCQSection A

Plants which bear unisexual flowers are :

How do Organisms Reproduce?
Sexual Reproduction in Flowering Plants

Options

(a)Mustard and Papaya
(b)Hibiscus and Watermelon
(c)Mustard and Hibiscus
(d)Watermelon and Papaya
Official Answer

The correct option is (d) Watermelon and Papaya.

Unisexual flowersPapayaWatermelonstamenscarpels

Marking Scheme

  • 11 mark for selecting the correct option (d) Watermelon and Papaya.

Hint

Recall the examples of unisexual and bisexual flowers given in the NCERT textbook chapter on reproduction.

Quick Oral Answer

Unisexual flowers are those that contain only one reproductive organ—either male (stamens) or female (carpels). Examples include papaya and watermelon.

Analysis & Explanation

Flowers are classified into two main types based on the presence of reproductive organs:

  1. Unisexual flowers: These flowers contain either only stamens (male reproductive organs) or only carpels/pistils (female reproductive organs). Examples include papaya and watermelon.
  2. Bisexual flowers: These flowers contain both stamens and carpels within the same flower. Examples include hibiscus and mustard.

  • Option (a) Mustard and Papaya is incorrect because mustard bears bisexual flowers.
  • Option (b) Hibiscus and Watermelon is incorrect because hibiscus bears bisexual flowers.
  • Option (c) Mustard and Hibiscus is incorrect because both bear bisexual flowers.
  • Option (d) Watermelon and Papaya is correct because both plants bear unisexual flowers.

Common Mistakes

  1. 1Students often confuse bisexual flowers like hibiscus and mustard with unisexual ones like papaya and watermelon.

Interesting Facts

Because unisexual flowers contain only one type of reproductive organ, they must rely entirely on cross-pollination (via wind, water, or insects) to achieve fertilization.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2023?

This question carries 1 mark in the CBSE Class 10 Science 2023 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 "Sexual Reproduction in Flowering Plants" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2023 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2023 paper.