Anatomy of Flowering PlantsHard
Question
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 ?
Options
A.
Acidic
B.
Alkaline
C.
Low refractive index
D.
Absence of sugar
Solution
Alkaline pH (7.8 - 8.0) is present in phloem sap where as xylem sap is acidic.
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