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Karnataka Board PUCPUC Science Class 11

Plants show temporary and permanent wilting. Differentiate between the two. Do any of them indicate the water status of the soil? - Biology

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Question

Plants show temporary and permanent wilting. Differentiate between the two. Do any of them indicate the water status of the soil?

Distinguish Between
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Solution

Temporary Wilting Permanent Wilting
(i) There is a temporary loss of turgidity in cells. (i) There is permanent loss of turgidity in cells.
(ii) This happens when the rate of (ii) This happens when the rate of transpiration is more than the rate of water supply Then the rate of water supply. But the difference is below a critical level.
(iii) Wilting disappears as soon as the water supply resumes to normal. (iii) Wilting does not disappear even after the water supply resumes to normal.
(iv) Plant recovers its normal activity. (iv) Plant eventually dies.
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Chapter 11: Transport in Plants - Exercises [Page 61]

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NCERT Exemplar Biology [English] Class 11
Chapter 11 Transport in Plants
Exercises | Q 2. | Page 61

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