Biology · Environmental Studies

Plant Reproduction and Germination

892 Questions

Plant reproduction and germination involve seed structure, cotyledon function, and dispersal mechanisms. These core botany concepts frequently appear in general science sections. Practice these questions to ensure better retention.

Seed germination typesSeed dispersal mechanismsCotyledons and albuminous seedsCryptogamic plantsPhanerogams reproduction

Plant Reproduction and Germination Questions

Multiple choice

Which of the following statements is incorrect?

  1. After fertilisation, the ovary grows into a seed.

  2. After fertilisation, other parts of the flower fall off.

  3. Seeds are enclosed in a protective seed coat.

  4. Insects are agents of pollination.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

After fertilisation, the other parts of the flower fall off as they are used for attracting insects, etc. for pollination. Seeds are enclosed in a protective seed coat. The seeds are formed from the ovules. Insects are agents of pollination.

Multiple choice

Double fertilisation means the fusion of

  1. one male gamete with the egg and the other with the antipodal cell

  2. one male gamete with the egg and the other with the secondary nucleus

  3. one male gamete with the egg and other with the synergids

  4. two male gametes with an egg
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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Multiple choice

Which of the following statements is incorrect?

  1. Gymnosperms are usually perennial and evergreen.

  2. Cotyledons emerge and become green when the seed germinates.

  3. Phanerogams are plants with hidden reproductive organs.

  4. Angiosperms are flowering plants.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cryptogamaes are the plants with hidden reproductive organs.

Multiple choice

In an experiment, a student put a small quantity of seeds in a container filled with water and left this aside for a day. Next day, he drained the water completely and wrapped the seeds with a piece of wet cloth and set it aside. Which among the following is the possible answer for this experiment?

  1. To produce a new variety of the plant

  2. To produce sprouts

  3. To protect the seeds from diseases

  4. To preserve the seeds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The above activity results in sprouted seeds i.e. a small white structure grown out of the seeds.

Multiple choice

Which of the following movements is not caused by growth?

  1. A climbing pea plant

  2. A germinating seed

  3. Drooping leaves of touch–me–not

  4. A shoot bending towards light
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

‘Touch-me-not’ plants are sensitive plants. They do not show growth as they fold up and droop in response to touch. This is because of the reason that when such plants are touched or disturbed, certain specialised cells in the stem become sensitive and release certain chemicals. These chemicals help in removing the water from vacuoles of the cells. As a result of this, water diffuses out of the plant cells, making them shrink.