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If stem of plant is cut under a state of tension in xylem sap, what will be the result? |
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a) |
The xylem sap sprout out |
b) |
Xylem sap will accumulate at cut surface |
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c) |
The cut surface will form air bubbles, when placed in water |
d) |
Air will be pulled into the xylem |
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If stem of plant is cut under a state of tension in xylem sap, what will be the result? |
|||
|
a) |
The xylem sap sprout out |
b) |
Xylem sap will accumulate at cut surface |
|
c) |
The cut surface will form air bubbles, when placed in water |
d) |
Air will be pulled into the xylem |
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(d) If the stem of plant is cut under a state of tension in xylem sap, the air will be pulled into the xylem and the transport of water (xylem sap) remains in continuity. However, it can be discontinued with the introduction of air bubble in the xylem. Copeland (1902) believed that air bubbles enter into the xylem and break the tensile strength or cohesion force between the water molecule |