Chapter 5: Reproduction and Modification in Plants — Online MCQ Test
SCIENCE · Samacheer Kalvi 7th · Tamil Nadu State Board
Practice Chapter 5: Reproduction and Modification in Plants with a free chapter-wise online MCQ test.
This chapter covers: Pollination fertilization modification Plant reproduction methods fertilization pollination and structural adaptations.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter 5: Reproduction and Modification in Plants — Important Questions & Answers
Which part of a flower produces pollen grains?
- A. Stigma
- B. Anther
- C. Ovary
- D. Sepal
Answer: B. Anther
The anther is the part of the stamen that produces pollen grains. Pollen contains the male reproductive cells.
The anther is the part of the stamen that produces pollen grains. Pollen contains the male reproductive cells.
Pollination means the transfer of pollen grains from ____ to stigma.
- A. stigma
- B. ovary
- C. anther
- D. petal
Answer: C. anther
Pollination is the movement of pollen grains from the anther to the stigma of a flower.
Pollination is the movement of pollen grains from the anther to the stigma of a flower.
After pollination, which process occurs next to form seeds?
- A. Germination
- B. Fertilization
- C. Spore formation
- D. Budding
Answer: B. Fertilization
Fertilization takes place after pollination when the male and female gametes unite in the ovule.
Fertilization takes place after pollination when the male and female gametes unite in the ovule.
Which of the following is the best reason why cactus leaves are modified into spines?
- A. To attract insects
- B. To store food
- C. To reduce water loss
- D. To help in pollination
Answer: C. To reduce water loss
Cactus leaves are modified into spines to reduce transpiration and conserve water in dry regions.
Cactus leaves are modified into spines to reduce transpiration and conserve water in dry regions.
Which of the following is the correct sequence of events in sexual reproduction in flowering plants?
- A. Fertilization → Pollination → Seed formation → Germination
- B. Pollination → Fertilization → Seed formation → Germination
- C. Seed formation → Pollination → Fertilization → Germination
- D. Germination → Pollination → Fertilization → Seed formation
Answer: B. Pollination → Fertilization → Seed formation → Germination
Pollination occurs first, followed by fertilization. After fertilization, seeds form and later germinate under suitable conditions.
Pollination occurs first, followed by fertilization. After fertilization, seeds form and later germinate under suitable conditions.