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Avena curvature test is a bioassay for e...

Avena curvature test is a bioassay for examining the activity of

A

auxins

B

gibberellins

C

cytokinin

D

ethylene

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The correct Answer is:
A
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A bioassay for determining the activity of auxin is

The Avena curvature is used for bioassay of

Avena curvature test was first of all done by

Make corrections wherever you find mistake in spellings/words in the following parapraphs/sentences. (A) During the period of senescence, a gradual addition occurs in the structure and functioning of an organ or organism which is characterised by the accumulation of active metabolic materials and increase in dry weight. (B) When the movement of curvature is produced by diffused stimuli and affects the whole plant uniformly, it is of tropic type. If the curvature is produced by directional mutimuli and does not affect the whole plant, it is of nastic type. (C) Shoot elongation in some dwarf varieties and barley endosperm test are used as bioassays for auxins and Avena curvature test is used as bioassay for ethylene.

Define bioassay.

Avena curvature test and dwarf maize test are bioassays of, respectively,

Bioassay of IAA is

Bioassay for gibberellin is

NCERT FINGERTIPS-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
  1. Hormone involved in phototropism is

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  2. Which plant hormone induces the phenomenon of photoropism in plants?

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  3. Avena curvature test is a bioassay for examining the activity of

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  4. Gibberellin was first extracted from

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  5. Which one is paired incorrectly?

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  6. Who isolated auxins from tips of coleoptiles of oat seedings?

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  7. High concentration of auxin is present in

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  8. Which of the following effects of auxins on plants is the basis for th...

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  9. Which of the following hormones is used in root formation on stem cutt...

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  10. Select the correct statements (s) regarding auxins.

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  11. Apical dominance is dicot plants is due to the presence of morein the ...

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  12. The term 'auxin precursor' refers to

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  13. Read the given statements and select the correct option. (i) Darwin ...

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  14. In the process of apical dominance, lateral buds are unable to grow in...

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  15. Decapitation i.e. removal of shoot tips in a plant usually results in

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  16. In tea plantations and hedge making, gardeners trim the plants regular...

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  17. Removal of auxin source demonstrates that leaf abscission is by auxin,...

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  18. The hormone responsible for apical dominance is

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  19. Functions of auxins include

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  20. To get a carpet like grass, lawns are mowed regularly, this is done to

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