Plant Growth and Development ( Seed germination; Phases of Plant Growth and Plant Growth Rate; Conditions of Growth; Differentiation, Dedifferentiation and Redifferentiation; Sequence of Developmental Process in a Plant Cell; Growth Regulators Auxin, Gibberellin...) NEET Questions

Biology - Plant Physiology

Plant Growth and Development ( Seed germination; Phases of Plant Growth and Plant Growth Rate; Conditions of Growth; Differentiation, Dedifferentiation and Redifferentiation; Sequence of Developmental Process in a Plant Cell; Growth Regulators Auxin, Gibberellin...) MCQ Questions


1.
Which of the following conditions is essential for seed germination?
A.
Only soil minerals
B.
Only carbon dioxide
C.
Only sunlight
D.
Adequate water, suitable temperature, and oxygen supply
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ANSWER :
D. Adequate water, suitable temperature, and oxygen supply
2.
The first visible sign of seed germination is the emergence of:
A.
Cotyledon
B.
Radicle
C.
Plumule
D.
Hypocotyl
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ANSWER :
B. Radicle
3.
Which type of germination involves cotyledons being pushed above the soil?
A.
Quiescence
B.
Vivipary
C.
Hypogeal germination
D.
Epigeal germination
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ANSWER :
D. Epigeal germination
4.
In hypogeal germination, the cotyledons remain:
A.
Above the soil surface
B.
Floating in air
C.
Below the soil surface
D.
Outside the seed
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ANSWER :
C. Below the soil surface
5.
Which plant hormone is primarily responsible for breaking seed dormancy?
A.
Gibberellin
B.
Auxin
C.
Ethylene
D.
Abscisic acid
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ANSWER :
A. Gibberellin
6.
Vivipary is the phenomenon of:
A.
Seed dormancy in fruits
B.
Production of seeds without fertilization
C.
Seed germination while still attached to the parent plant
D.
Germination of seeds in dry soil
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ANSWER :
C. Seed germination while still attached to the parent plant