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[A]: High pH in guard cells activate pho...

[A]: High pH in guard cells activate phosphorylase to convert starch into glucose 1-`PO_4` .
[R]: Stomata open when pH is low

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
D
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Stomatal movements are influenced by a number of environmental factors, Which of the following statements is // are incorrect regarding this? (ii)Blue light keeps stomata open during the day pormoting the movement of K_(+) ions into guard cells. (ii) Increased CO_(2) concentraation reduces the pH of guard cells which promotes conversion of sugar into starch ultimately causing closure of stomata. (iii) Abscisic acid under stress conditions, causes repid movement of K_(+) ions into guard cells. Highly concentrated sucrose or salt solution when applied over to stomata results in stomata opening.

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TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
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  12. [A]: The light dependent reactions occur in thylakoids. [R]: In thyl...

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  15. [A]: Hill and Bendall proposed Z-scheme and suggested that photosystem...

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