please explain whole 127

Q127. During high rate of transpiration

       (1) Water pontential of epidermal cells increases 

       (2) Water pontential of epidermal cells decreases

       (3) A positive pressure develops in xylem vessel

       (4) More than one option is correct

During high rate of transpiration, a negative pressure known as tension develops in xylem vessels and water potential decreases in the epidermal cells. This is because turgor pressure decreases and with this decrease, water potential also decreases..

Hence, option (2) is correct.

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