In succulents like cacti, stomata close during day. Why $?$

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Solution

Stomata remain closed during the day to prevent the loss of water by transpiration.

These plants open their stomata only at night when the air is cooler and humid.

This helps them reduce the amount of water transpired.

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Similar questions

Q. Succulents are known to keep their stomata closed during the day to check transpiration. How do they meet their photosynthetic

C O_{2}

requirements?

Match the reasons given in column 2 to the features of cacti in column 1.

$\begin{matrix} F e a t u r e s o f c a c t i & R e a s o n s a . Spiny leaves & (i) Absorbing water from depths of soil b . Thick, round fleshy stems & (i i) Prevent loss of water by transpiration c . Deep roots & (i i i) Store water d . Closed stomata during the day & (i v) Prevent animals from eating the cactus e . Carbon dioxide storage during the night \end{matrix}$

Choose the correct option.

Match the reasons given in column 2 to the features of cacti in column 1. There can be multiple matches.

$\begin{matrix} F e a t u r e o f c a c t i & R e a s o n s a . Spiny leaves & (i) Absorbing water from depths of soil b . Thick, round fleshy stems & (i i) Prevent loss of water by transpiration c . Deep roots & (i i i) Store water d . Closed stomata during the day & (i v) Prevent animals from eating the cactus e . Carbon dioxide storage during the night \end{matrix}$