Water is lost through hydathodes. Hydathodes

Remain closed at night

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Remain closed during day

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Always remain open

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Remain open during day

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Solution

The correct option is B Always remain open
Hydathodes are the specialized pores at vein endings. Each hydrathode is made up of group of loosely arranged achlorophyllous or colourless and parenchymatous cells called epithem. These cells help in absorbing a good percentage of inorganic and organic solutes present in the exudate. It helps in guttation and always remain open.
So, the correct answer is option C.

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