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High concentration of auxin is present i...

High concentration of auxin is present in

A

root apex

B

stem apex

C

node

D

petiole

Text Solution

Verified by Experts

The correct Answer is:
B
The term 'auxin' is applied to the indole-3-acetic acid (IA A) and to other natural and synthetic compounds having certain growth regulating properties. They are generally produced by the growing apices of the stem, from where they migrate to the regions of their action.
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NCERT FINGERTIPS-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
  1. Which one is paired incorrectly?

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

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  3. High concentration of auxin is present in

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

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

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

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

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  8. The term 'auxin precursor' refers to

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

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

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

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

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

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  14. The hormone responsible for apical dominance is

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  15. Functions of auxins include

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

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  17. Arificial application of auxins like IA A, IBA and NA A to unpollinate...

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  18. The term 'antiauxin' refers to

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  19. Which of the following statements regarding gibberellins is incorrect?

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  20. The fruits can be left on the three longer using GA so as to extend th...

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