Chapter Exam

Unit 3 Chapter 7: Reproduction in Plants - Sexual Reproduction in Flowering Plants — Online MCQ Test

Q: Microsporogenesis in flowering plants refers to the formation of ______.

Answer: B. microspores from microspore mother cells — Microsporogenesis is the process by which microspore mother cells undergo meiosis to form haploid microspores, which later develop into pollen grains.

Q: The structure that receives pollen grains during pollination is the ______.

Answer: C. stigma — The stigma is the receptive surface of the pistil where pollen grains land and germinate.

Q: During megasporogenesis in most flowering plants, how many functional megaspores are usually formed from one megaspore mother cell?

Answer: D. One — Typically, meiosis in the megaspore mother cell produces four megaspores, but only one remains functional in most angiosperms.

Q: If the embryo sac has already received one male gamete and the second male gamete fails to fuse with the central cell, which process is directly affected?

Answer: C. Endosperm development — The second male gamete is required for triple fusion and formation of the primary endosperm nucleus, which initiates endosperm development.

Q: A breeder wants to preserve hybrid vigor in the next generation without repeated crossing. Which phenomenon is most useful?

Answer: B. Apomixis — Apomixis allows seed formation without fertilization, helping maintain the exact hybrid genotype across generations.

BOTANY · CLASS 11 INTERMEDIATE 1 YEAR · Telangana State Board

Practice Unit 3 Chapter 7: Reproduction in Plants - Sexual Reproduction in Flowering Plants with a free chapter-wise online MCQ test for Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR BOTANY. This chapter covers: This chapter details microsporogenesis megasporogenesis pollination pollen-pistil interactions double fertilization endosperm embryo development apomixis and polyembryony.. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Unit 3 Chapter 7: Reproduction in Plants - Sexual Reproduction in Flowering Plants — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR BOTANY — Unit 3 Chapter 7: Reproduction in Plants - Sexual Reproduction in Flowering Plants, with answers and explanations. These are sample questions; the exam has its own separate question set.

Microsporogenesis in flowering plants refers to the formation of ______.

A. megaspore mother cells
B. microspores from microspore mother cells ✓
C. pollen tube from pollen grain
D. endosperm from primary endosperm nucleus

Answer: B. microspores from microspore mother cells
Microsporogenesis is the process by which microspore mother cells undergo meiosis to form haploid microspores, which later develop into pollen grains.

The structure that receives pollen grains during pollination is the ______.

A. anther
B. style
C. stigma ✓
D. ovule

Answer: C. stigma
The stigma is the receptive surface of the pistil where pollen grains land and germinate.

During megasporogenesis in most flowering plants, how many functional megaspores are usually formed from one megaspore mother cell?

A. Four
B. Three
C. Two
D. One ✓

Answer: D. One
Typically, meiosis in the megaspore mother cell produces four megaspores, but only one remains functional in most angiosperms.

If the embryo sac has already received one male gamete and the second male gamete fails to fuse with the central cell, which process is directly affected?

A. Microsporogenesis
B. Formation of pollen wall
C. Endosperm development ✓
D. Pollination

Answer: C. Endosperm development
The second male gamete is required for triple fusion and formation of the primary endosperm nucleus, which initiates endosperm development.

A breeder wants to preserve hybrid vigor in the next generation without repeated crossing. Which phenomenon is most useful?