1. What is the plumule of a seed?
A.
The embryonic root
B.
The embryonic shoot
C.
The seed covering
D.
The food-storage tissue
Correct Answer:
The embryonic shoot
Explanation:
The plumule is the embryonic shoot of a seed and develops into the aerial part of the plant.
2. Which part of the embryo develops into the stem and leaves?
A.
Radicle
B.
Seed coat
C.
Plumule
D.
Endosperm
Correct Answer:
Plumule
Explanation:
The plumule develops into the shoot system, including the stem and leaves.
3. In a dicot embryo, the plumule is generally found between the two:
A.
Root caps
B.
Cotyledons
C.
Seed coats
D.
Endosperms
Correct Answer:
Cotyledons
Explanation:
In a dicot embryo, the plumule lies between the two cotyledons and forms the young shoot.
4. What does the plumule become after seed germination?
A.
The root system
B.
The shoot system
C.
The seed coat
D.
The root cap
Correct Answer:
The shoot system
Explanation:
During germination, the plumule grows upward and forms the shoot system of the seedling.
5. The plumule is also commonly described as the:
A.
Embryonic shoot bud
B.
Protective seed coat
C.
Embryonic root tip
D.
Food-storing cotyledon
Correct Answer:
Embryonic shoot bud
Explanation:
The plumule is the embryonic shoot bud that gives rise to the stem and young leaves.
6. In a monocot embryo, the plumule is protected by the:
A.
Coleoptile
B.
Coleorhiza
C.
Testa
D.
Root cap
Correct Answer:
Coleoptile
Explanation:
In monocots, the coleoptile is a protective sheath covering the plumule as it grows through the soil.
7. Which structure emerges upward from the seed during germination to form the young shoot?
A.
Plumule
B.
Radicle
C.
Seed coat
D.
Endosperm
Correct Answer:
Plumule
Explanation:
The plumule grows upward during germination and develops into the young shoot.
8. The first leaves of a seedling develop from the:
A.
Plumule
B.
Radicle
C.
Seed coat
D.
Root cap
Correct Answer:
Plumule
Explanation:
The plumule contains the young shoot and gives rise to the first leaves of the seedling.
9. Which embryonic structure is responsible for the formation of the aerial portion of a plant?
A.
Plumule
B.
Radicle
C.
Coleorhiza
D.
Seed coat
Correct Answer:
Plumule
Explanation:
The plumule forms the aerial shoot, including the stem and leaves.
10. What is the main function of the plumule in a seed?
A.
To form the primary root
B.
To form the shoot of the new plant
C.
To protect the whole seed
D.
To store food for the embryo
Correct Answer:
To form the shoot of the new plant
Explanation:
The main function of the plumule is to develop into the shoot of the new plant after germination.
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