SaraNextGen Study App [2023-24]
Last Updated On [03-11-2023]

What is depicted by the given diagram below?

a)

Measuring the rate of transpiration

b)

Demonstration of ascent of sap

c)

Demonstration of transpiration

d)

Both (a) and (c)


Question ID - 3744 :-

What is depicted by the given diagram below?

a)

Measuring the rate of transpiration

b)

Demonstration of ascent of sap

c)

Demonstration of transpiration

d)

Both (a) and (c)

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

It is demonstration of transpiration by bell jar experiment. It this experiment a potted plant is placed on a slab and a dry bell jar is inverted over it. Having sealed the edge of jar with wax or Vaseline, the whole apparatus is left undisturbed. After sometimes the inner surface of bell jar became misty due to transpiration by plant



Next Question :

Choose correct statements regarding the flow of sap in xylem?

I. Flow is driven by higher concentration of sugar in the vessel elements

II. Flow from root to twigs and leaves would be reduced if leaves are removed

III. In the morning, sap begins to flow first in the twig then in trunk

IV. Rapid flow of water put tissues under pressure much more than atmospheric pressure

a)

I and IV

b)

II and III

c)

I, II, III and IV

d)

No one is correct


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