Chapter 17: Reproduction in Plants and Animals — Online MCQ Test
SCIENCE · CLASS 10th · Tamil Nadu State Board
Practice Chapter 17: Reproduction in Plants and Animals with a free chapter-wise online MCQ test.
This chapter covers: This chapter details vegetative propagation floral structure pollination fertilization in plants alongside human gametogenesis and embryonic development. Students examine reproduct....
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Chapter 17: Reproduction in Plants and Animals — Important Questions & Answers
The process by which plants reproduce from vegetative parts like stem, root, or leaf is known as:
- A. Sexual reproduction
- B. Vegetative propagation
- C. Pollination
- D. Fertilization
Answer: B. Vegetative propagation
Vegetative propagation is an asexual method where new plants grow from vegetative parts of the parent plant.
Vegetative propagation is an asexual method where new plants grow from vegetative parts of the parent plant.
Which part of the flower develops into the fruit after fertilization?
- A. Ovule
- B. Stamen
- C. Ovary
- D. Petal
Answer: C. Ovary
After fertilization, the ovary enlarges and matures to become the fruit, while ovules become seeds.
After fertilization, the ovary enlarges and matures to become the fruit, while ovules become seeds.
Which of these is NOT a method of natural vegetative propagation?
- A. Layering
- B. Runner
- C. Offset
- D. Sucker
Answer: A. Layering
Layering is an artificial method, whereas runners, offsets, and suckers are natural methods.
Layering is an artificial method, whereas runners, offsets, and suckers are natural methods.
Compare self-pollination and cross-pollination. Which statement is true?
- A. Self-pollination leads to high genetic variation.
- B. Cross-pollination requires the same plant.
- C. Self-pollination occurs in genetically similar flowers.
- D. Cross-pollination never requires external agents.
Answer: C. Self-pollination occurs in genetically similar flowers.
Self-pollination occurs within the same flower or different flowers on the same plant, maintaining genetic uniformity.
Self-pollination occurs within the same flower or different flowers on the same plant, maintaining genetic uniformity.
In vegetative propagation using Bryophyllum, the new plants grow from:
- A. Root buds
- B. Stem nodes
- C. Foliar buds on leaf margins
- D. Adventitious flowers
Answer: C. Foliar buds on leaf margins
Bryophyllum propagates through epiphyllous buds (foliar buds) present on the margins of its leaves.
Bryophyllum propagates through epiphyllous buds (foliar buds) present on the margins of its leaves.