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Question

When the mesophyll cells lose water, their DPD will

A
Increase
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B
Decrease
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C
Remain constant
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D
None of the above is applicable
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Solution

The correct option is A Increase
When the mesophyll cells lose water the concentration of solutes will increase. Consequently, the OP will increase concomitantly, there will be a drop in turgor and TP will decrease. These changes will increase the DPD. Water moves from lower DPD to higher DPD, thus, water will gain entry into the cells, whose DPD has increased.

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