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11th CBSE
IMPORTANT
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The term synergistic action of hormones refers to

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Important Questions on Plant Growth and Development

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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>MULTIPLE CHOICE QUESTIONS>Q 8
Plasticity in plant growth means that:
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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>MULTIPLE CHOICE QUESTIONS>Q 9
To increase sugar production in sugarcanes, they are sprayed with
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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>MULTIPLE CHOICE QUESTIONS>Q 10
ABA acts antagonistic to
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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>MULTIPLE CHOICE QUESTIONS>Q 11
Monocarpic plants are those which
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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>MULTIPLE CHOICE QUESTIONS>Q 12
The photoperiod in plants is perceived at
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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>VERY SHORT ANSWER TYPE QUESTIONS>Q 1

Fill in the blank with the correct option provided in the bracket.

A phase of growth which is maximum and fastest is _____(exponential/lag/stationary).

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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>VERY SHORT ANSWER TYPE QUESTIONS>Q 1

Fill in the blank with the correct option provided in the bracket.

Apical dominance, as expressed in dicotyledonous plants, is due to the presence of more _____(auxin/gibberellin/cytokinin) in the apical bud than in the lateral ones.

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11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>VERY SHORT ANSWER TYPE QUESTIONS>Q 1
In addition to auxin, a _____ must be supplied to the culture medium to obtain a good callus in plant tissue cultures.