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Last Updated On [03-11-2023]

The osmotic potential and pressure potential of three cells (A, B, C) located in different parts of an actively transpiring plant are given below.

Cell

Osmotic Potential (MPa)

Pressure Potential (MPa)

A

-0.87

0.44

B

-0.92

0.34

C

-0.68

0.27

Identify these three cells as root hair, root cortical and leaf mesophyll cells respectively. The correct answer is

a)

A, B, C

b)

A, C, B

c)

C, A, B

d)

B, C,A


Question ID - 3855 :-

The osmotic potential and pressure potential of three cells (A, B, C) located in different parts of an actively transpiring plant are given below.

Cell

Osmotic Potential (MPa)

Pressure Potential (MPa)

A

-0.87

0.44

B

-0.92

0.34

C

-0.68

0.27

Identify these three cells as root hair, root cortical and leaf mesophyll cells respectively. The correct answer is

a)

A, B, C

b)

A, C, B

c)

C, A, B

d)

B, C,A

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

Water potentials of the given cells are

                

                  A=-0.87+0.44=-0.43

                  B=-0.92+0.34=-0.58

                  C=-0.68+0.27=-0.41

As water moves from greater water potential to less, root hair, root cortical and leaf mesophyll cells are C, A, B respectively.



Next Question :

In tall plants, because of which factor, continuous water column extends upward?

a)

Atmospheric pressure

b)

Osmotic pressure

c)

Suction pull

d)

Root pressure


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