Name the hormone that promotes apical dominance.

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Important Questions on Plant Growth and Development

EASY

11th CBSE

IMPORTANT

NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>SHORT ANSWER TYPE QUESTIONS>Q 20

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

_____ hormone initiate rooting in stem cuttings. (Gibberellin, Ethylene, Auxin, ABA)

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11th CBSE

IMPORTANT

NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>SHORT ANSWER TYPE QUESTIONS>Q 20

Name the pigment involved in Photo-perception in flowering plants.

HARD

11th CBSE

IMPORTANT

NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>LONG ANSWER TYPE QUESTIONS>Q 1

Some varieties of wheat are known as spring wheat, while others are called winter wheat. The former variety is sown, and planted in spring, and is harvested by the end of the same season. However, winter varieties, if planted in spring, fail to flower or produce mature grains within a span of a flowering season. Explain, why?

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11th CBSE

IMPORTANT

NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>LONG ANSWER TYPE QUESTIONS>Q 2

It is known that some varieties of wheat are sown in autumn but are harvested around next mid-summer.

What could be the probable reason for this?

EASY

11th CBSE

IMPORTANT

NCERT Exemplar Biology - Class 11>Chapter 15 - Plant Growth and Development>LONG ANSWER TYPE QUESTIONS>Q 2

What term is used for the promotion of flowering under low temperature?

EASY