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A few drops of sap were collected by cut...

A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap ?

A

Acidic

B

Alkaline

C

Law refractive index

D

The absoence of sugar

Text Solution

Verified by Experts

The correct Answer is:
B
The phloem sap is alkaline in nature. It continuously pumps protons form its companion cells to the other neighbouring cells during transport of sugars.
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