Class 10 Science: Modes of Reproduction Used by Single Organisms — Practice Questions with Answers
Exam-style CBSE practice questions on Modes of Reproduction Used by Single Organisms (How do Organisms Reproduce?). Try each one first, then reveal the correct answer and a step-by-step explanation. Free, from EduLevel — the AI teacher for CBSE.
Q1easy1 mark
In which of the following organisms does asexual reproduction occur through budding?
Amoeba
Yeast
Plasmodium
Leishmania
Need a hint?
Consider the different modes of asexual reproduction seen in unicellular organisms, like binary fission and budding.
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Answer: Yeast
Explanation: Yeast is a fungus that reproduces asexually by forming small buds that detach and grow into new individuals. Amoeba and Leishmania reproduce by binary fission, and Plasmodium by multiple fission.
Q2easy1 markCBSE 2024
Through which method does Bryophyllum produce a new plant?
Apical buds formed on the tip of the plant
Vegetative buds produced in the notches of the leaf
Flowers produced in the notches of the branches
Fruits formed on the branches of the plant
Need a hint?
Consider the process of asexual reproduction in plants where new plants grow from parts other than seeds. This is known as vegetative propagation.
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Answer: Vegetative buds produced in the notches of the leaf
Explanation: Bryophyllum reproduces asexually via vegetative propagation, where adventitious buds on the leaf margins develop into new plantlets.
Q3easy1 markCBSE 2024
Plants like rose and banana, which are often grown through vegetative means, have consequently lost the ability to produce which of the following?
Flowers
Buds
Seeds
Fruits
Need a hint?
Think about the primary function of sexual reproduction in plants and how it leads to the next generation.
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Answer: Seeds
Explanation: Many cultivated varieties of plants like rose and banana are propagated vegetatively, and as a result, they have lost the capacity to produce viable seeds.
Q4easy1 markCBSE 2024
Which of the following statements is incorrect regarding plants raised through vegetative propagation?
They can bear flowers and fruits earlier than plants grown from seeds.
Plants that have lost the ability to produce seeds can be grown this way.
Compared to the parent plant, these plants exhibit more variations.
All plants produced this way are genetically identical to the parent plant.
Need a hint?
Consider the process of vegetative propagation. Does it involve sexual reproduction with the mixing of genetic material, or asexual reproduction where genetic material is passed on directly?
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Answer: Compared to the parent plant, these plants exhibit more variations.
Explanation: Vegetative propagation is a form of asexual reproduction that produces genetically identical offspring, hence there is no genetic variation.
Q5easy1 markCBSE 2024
Identify the respective modes of reproduction for Spirogyra and Planaria.
Regeneration and budding
Regeneration and fragmentation
Fragmentation and regeneration
Budding and regeneration
Need a hint?
Consider the types of asexual reproduction observed in simple multicellular organisms and algae. One involves breaking into pieces, while the other involves specialized cell growth.
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Answer: Fragmentation and regeneration
Explanation: Spirogyra reproduces asexually by fragmentation, where its filament breaks into new individuals. Planaria reproduces by regeneration, where a severed body part can grow into a complete organism.
Q6easy1 markCBSE 2024
Which of the following groups of plants can be grown using the method of vegetative propagation?
Sugarcane, roses, grapes
Sugarcane, mustard, potato
Banana, orange, mustard
Papaya, mustard, potato
Need a hint?
Vegetative propagation involves growing new plants from parts of the parent plant, such as stems, roots, or leaves, rather than from seeds.
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Answer: Sugarcane, roses, grapes
Explanation: Sugarcane, roses, and grapes are commonly propagated vegetatively through methods like stem cuttings, which allows for faster growth and preservation of desired traits.
Q7easy1 markCBSE 2024
For the following question, two statements are given- one labeled Assertion (A) and the other labeled Reason (R). Select the correct answer to this question from the codes (a), (b), (c) and (d) as given below.
Assertion (A): Offspring produced by asexual reproduction are genetically similar to the parents.
Reason (R): Asexual reproduction involves a single parent.
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is not the correct explanation of (A).
(A) is true, but (R) is false.
(A) is false, but (R) is true.
Need a hint?
Think about how new individuals are created in asexual reproduction. Does it involve the mixing of genetic material from two sources?
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Answer: Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation: The assertion is true as asexual reproduction produces clones. The reason is also true and correctly explains the assertion, as the involvement of a single parent means there is no mixing of genetic material from two different individuals.
Q8easy1 markCBSE 2023
From the following options, select the incorrect match between the plant and its part used for vegetative propagation.
Bryophyllum, leaf
Potato, stem
Money-plant, stem
Rose, root
Need a hint?
Vegetative propagation involves using vegetative parts of a plant like leaves, stems, or roots to grow a new plant. Consider which of these parts are typically used for propagation in the given examples.
Show answer & explanation
Answer: Rose, root
Explanation: The incorrect match is Rose, root. Roses are typically propagated vegetatively using stem cuttings, not their roots.
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