Reproduction in Plants Quiz

Observe the diagrams labelled A, B, C, and D showing different organisms and their modes of reproduction. Which of the following correctly matches each label with its mode of asexual reproduction?

1. A – Budding, B – Bulb propagation, C – Tuber propagation
2. A – Runner propagation, B – Bulb propagation, C – Tuber propagation
3. A – Bulb propagation, B – Tuber propagation, C – Runner propagation
4. A – Tuber propagation, B – Runner propagation, C – Budding

Answer: (b) A – Runner propagation, B – Bulb propagation, C – Tuber propagation

Read the statement and choose the correct answer: Assertion (A): Potato reproduces through underground stem called tuber. Reason (R): Tubers are swollen roots that contain stored food.

1. A and R are true, R explains A
2. A and R are true, R doesn't explain A
3. A is true, R is false
4. A is false, R is true

Answer: (c) A is true, R is false

The release of Y from X is most likely triggered when:

1. Water accumulates in sporangium
2. Sporangium matures and wall ruptures
3. Temperature drops suddenly
4. Fungal cells divide sexually

Answer: (b) Sporangium matures and wall ruptures

Which of the following observations best indicates that a flower is insect-pollinated rather than wind-pollinated?

1. The flower has light and dry pollen grains.
2. The flower produces no nectar.
3. The flower has dull colours and no scent.
4. The flower has sticky pollen and a sweet scent.

Answer: (d) The flower has sticky pollen and a sweet scent.

Consider the following sequence of floral parts: 1. Stigma 2. Ovule 3. Style 4. Ovary Which is the correct order a pollen grain must travel to fertilise the egg?

1. 1 → 3 → 4 → 2
2. 1 → 2 → 3 → 4
3. 3 → 1 → 4 → 2
4. 1 → 4 → 3 → 2

Answer: (a) 1 → 3 → 4 → 2

Which of the following combinations forms the complete female reproductive organ?

1. A, B, D
2. C, D, E
3. B, C, E
4. A, C, D

Answer: (c) B, C, E

Which property makes grafting superior to growing plants from seeds, as shown in the image sequence?

1. Ensures taller plants
2. Promotes flower variation
3. Preserves desirable characters in next generation
4. Guarantees more sunlight for scion

Answer: (c) Preserves desirable characters in next generation

Read the statements and fill the blanks: A. In grafting, the plant part that develops into the shoot system is called the ______. B. New plants growing from cut stems in rose and hibiscus is an example of ______ propagation. C. Fruits and seeds are usually formed as a result of ______ reproduction.

1. A- rootstock, B- layering, C- vegetative
2. A- stem, B- grafting, C- artificial
3. A- graft band, B- fragmentation, C- asexual
4. A- scion, B- cutting, C- sexual

Answer: (d) A- scion, B- cutting, C- sexual

Consider the following statements regarding sexual reproduction in plants: 1. It involves the fusion of male and female gametes. 2. It increases variation in plants. 3. It always requires external pollinators. 4. It leads to the formation of fruits and seeds. Which one of the statements is false?

1. Only Statement 1
2. Only Statement 3
3. Statements 2 and 3
4. Statements 1 and 3

Answer: (b) Only Statement 3

Which of the following correctly matches the sequence of visible labels (A, B, C) in the image?

1. Radicle → Hypocotyl → Cotyledon
2. Hypocotyl → Plumule → Seed coat
3. Cotyledon → Root hair → Plumule
4. Radicle → Cotyledon → Ovary

Answer: (a) Radicle → Hypocotyl → Cotyledon