Plant Seeds Quiz: Class 9 Biology

1. In an albuminous (endospermic) seed, the primary food storage tissue for the developing embryo is the:

A) Cotyledons B) Endosperm C) Pericarp D) Embryonal axis

2. What is the name of the single, shield-shaped cotyledon in a grass (monocot) embryo, like maize?

A) Coleoptile B) Scutellum C) Coleorhiza D) Radicle

3. During epigeal germination, which part of the embryo elongates rapidly to push the cotyledons above the soil surface?

A) Epicotyl B) Radicle C) Plumule D) Hypocotyl

4. In hypogeal germination, which embryonic part elongates to bring the plumule out of the soil while the cotyledons remain underground?

A) Hypocotyl B) Radicle C) Epicotyl D) Cotyledon

5. Besides water absorption, what other crucial function does the micropyle perform during the initial stages of germination?

A) Provides protection from insects B) Facilitates gas exchange (oxygen entry) C) Stores food for the embryo D) Anchors the seed to the soil

6. The process of physically damaging the seed coat to allow water absorption and break dormancy is known as:

A) Stratification B) Vernalization C) Scarification D) Imbibition

7. What type of enzymes are activated during seed germination to break down complex stored food (like starch, proteins, fats) into simpler, soluble forms?

A) Photosynthetic enzymes B) Catalytic enzymes C) Polymerase enzymes D) Hydrolytic enzymes

8. Which physiological process within the germinating seed immediately utilizes the mobilized food reserves to provide energy for cell division and growth?

A) Transpiration B) Osmosis C) Respiration D) Photosynthesis

9. Seeds like those of cotton, milkweed, and dandelion are adapted for dispersal by wind due to the presence of:

A) Fleshy edible fruits B) Hooks or spines C) Air-filled chambers D) Hair-like or feathery structures (pappus)

10. What is the fundamental difference between a quiescent seed and a dormant seed?

A) Quiescent seeds require light, dormant seeds do not. B) Quiescent seeds lack favorable external conditions; dormant seeds have internal blocks to germination. C) Dormant seeds are always viable, quiescent seeds are not. D) Quiescent seeds are larger than dormant seeds.

Seeds of Plants - Class 9 Science Quiz

A Quiz for Class 9 Science Students (Set 1)

1. In an albuminous (endospermic) seed, the primary food storage tissue for the developing embryo is the:

2. What is the name of the single, shield-shaped cotyledon in a grass (monocot) embryo, like maize?

3. During epigeal germination, which part of the embryo elongates rapidly to push the cotyledons above the soil surface?

4. In hypogeal germination, which embryonic part elongates to bring the plumule out of the soil while the cotyledons remain underground?

5. Besides water absorption, what other crucial function does the micropyle perform during the initial stages of germination?

6. The process of physically damaging the seed coat to allow water absorption and break dormancy is known as:

7. What type of enzymes are activated during seed germination to break down complex stored food (like starch, proteins, fats) into simpler, soluble forms?

8. Which physiological process within the germinating seed immediately utilizes the mobilized food reserves to provide energy for cell division and growth?

9. Seeds like those of cotton, milkweed, and dandelion are adapted for dispersal by wind due to the presence of:

10. What is the fundamental difference between a quiescent seed and a dormant seed?

Quiz Results

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Seeds of Plants - Class 9 Science Quiz

A Quiz for Class 9 Science Students (Set 1)

1. In an albuminous (endospermic) seed, the primary food storage tissue for the developing embryo is the: Read

2. What is the name of the single, shield-shaped cotyledon in a grass (monocot) embryo, like maize? Read

3. During epigeal germination, which part of the embryo elongates rapidly to push the cotyledons above the soil surface? Read

4. In hypogeal germination, which embryonic part elongates to bring the plumule out of the soil while the cotyledons remain underground? Read

5. Besides water absorption, what other crucial function does the micropyle perform during the initial stages of germination? Read

6. The process of physically damaging the seed coat to allow water absorption and break dormancy is known as: Read

7. What type of enzymes are activated during seed germination to break down complex stored food (like starch, proteins, fats) into simpler, soluble forms? Read

8. Which physiological process within the germinating seed immediately utilizes the mobilized food reserves to provide energy for cell division and growth? Read

9. Seeds like those of cotton, milkweed, and dandelion are adapted for dispersal by wind due to the presence of: Read

10. What is the fundamental difference between a quiescent seed and a dormant seed? Read

Quiz Results

Was this page helpful?

1. In an albuminous (endospermic) seed, the primary food storage tissue for the developing embryo is the:

2. What is the name of the single, shield-shaped cotyledon in a grass (monocot) embryo, like maize?

3. During epigeal germination, which part of the embryo elongates rapidly to push the cotyledons above the soil surface?

4. In hypogeal germination, which embryonic part elongates to bring the plumule out of the soil while the cotyledons remain underground?

5. Besides water absorption, what other crucial function does the micropyle perform during the initial stages of germination?

6. The process of physically damaging the seed coat to allow water absorption and break dormancy is known as:

7. What type of enzymes are activated during seed germination to break down complex stored food (like starch, proteins, fats) into simpler, soluble forms?

8. Which physiological process within the germinating seed immediately utilizes the mobilized food reserves to provide energy for cell division and growth?

9. Seeds like those of cotton, milkweed, and dandelion are adapted for dispersal by wind due to the presence of:

10. What is the fundamental difference between a quiescent seed and a dormant seed?