What are photoactive stomata ?

Stomata which open at day time are called photoactive stomata.
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Describe active absorption.

Active absorption : The absorption which requires energy and is done against the concentration gradient is called active absorption. 
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What are scotoactive stomata ?

Stomata which open at night are called scotoactive stomata.
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Write notes on cuticular and lenticular transpiration

Cuticular transpiration : It is the transpiration which occurs through cuticle. It is 3-10% of total transpiration.

Lenticular transpiration : These are the openings in case of stem. These are formed below stomata. Some amount of water is transpires through the lenticels. This type of transpiration is called lenticular transpiration. It is 1% of total transpiration.

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What is apolast ?


Apoplast is the non-living complex of plant which includes cell walls, intercellular spaces and xylem channels.
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