Transport in Plants Test

Result

Transport in Plants Test - 71

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Weekly Quiz Competition

Question 1
1 / -0

Root pressure influence.

A
Evaporation

B
Transpiration

C
Guttation

D
Both (B) and (C)
Question 2
1 / -0

Minerals are absorbed by plants:

A
In colloidal form

B
In Ionic form

C
In precipitated form

D
None of these

Solution

Minerals are absorbed by plants - (B) In Ionic form.

Plant absorb minerals in ionic form __
Phosphate $$(HPO_4^-)$$ potassium ion $$(K^+)$$, Nitrate $$(NO_3^-)$$ mineral can be absorbed by both passive and Active methods. Passive mineral absorption does not require the expenditure of metabolic energy and Active mineral absorption does require the expenditure of metabolic energy. In roots, the mineral absorption usually takes place through the meristematic region of the root tip.
Question 3
1 / -0

Plasmolysis occurs due to :

A
Exosmosis

B
Endosmosis

C
Presence of solutes

D
Semipermeability of cell membrane
Question 4
1 / -0

Bulk flow or mass flow.

A
Can be achieved through root pressure

B
Can be achieved through transpiration pull

C
Can be achieved either through a positive Hydrostatic pressure or a negative hydrostatic pressure

D
More than one option is correct
Question 5
1 / -0

If some sugar is dissolved in pure water, its water potential.

A
Remain same

B
Decreases

C
Increases

D
First increases than decreases
Question 6
1 / -0

Pressure potential is usually positive but negative in case of?

A
Xylem vessels

B
Plasmolysed cell

C
Both A and B

D
Turgid cell

Solution

Pressure potential is usually positive but negative in the case of xylem vessels. It was known formerly as wall pressure or turgor pressure. In a turgid plant cell, pressure potential is usually positive but, negative in case of xylem, the potential pressure of xylem in a transpiring plant, which is under considerable tension, will be negative.
Question 7
1 / -0

Movement of water through the symplast involves crossing the

A
Intercellular spaces

B
Cell wall

C
Cell membrane

D
More than one option is correct
Question 8
1 / -0

The pressure exerted by the protoplasts due to entry of water against rigid walls is called

A
Solute potential

B
Pressure potential

C
Osmotic pressure

D
Turgor pressure
Question 9
1 / -0

Cell A has water potential of $$-3$$ bars and cell B has water potential of $$-8$$ bars. The movement of water will be from

A
Cell B to Cell A

B
Data insufficient

C
Cell A to Cell B

D
No movement observed
Question 10
1 / -0

The direction of movement of water in given cells A, B and C can be represented as?

A

B

C

D