Transport in Plants Test

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Transport in Plants Test - 12

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Weekly Quiz Competition

Question 1
1 / -0

When water moves through a semipermeable membrane, which of the following is created?

A
OP

B
SP

C
TP

D
WP

Solution

Osmotic pressure of a solution is equivalent to the pressure, which must be exerted upon it to prevent the flow of solvent into it across a semipermeable membrane.
Question 2
1 / -0

Solute potential of a solution is always

A
$$=0$$

B
> 0

C
< 0

D
Between 0 to 1

Solution

Solute potential of a solution is always negative. It's magnitude depends on the concentration of solute particles in the solution.
Question 3
1 / -0

Due to plasmoysis, the plant cell

A
Bursts

B
Swells up

C
Become turgid

D
Become flaccid

Solution

The cell will burst, swell or become turgid when endosmosis occurs i.e., water enters the cell. In case exosmosis occurs water moves from inside the cell to surrounding solution and the plant cell becomes flaccid. Thus, the correct answer is option D.
Question 4
1 / -0

The $$\Psi w$$ of pure water is

A
Minimum

B
Less than DPD

C
Maximum

D
Variable

Solution

Water potential depends on the number of water molecules in the solution. More the number of water molecules, more the water potential. Water potential of pure water is maximum. By convention the water potential of pure water is fixed as zero. Water potential of all solutions is hence negative.
Question 5
1 / -0

Product of sexual reproduction generally generates :

A
Longer viability of seeds

B
Prolonged dormancy

C
New genetic combination leading to variation

D
Large biomass

Solution

Sexual reproduction leads to new genetic combination leading to variation as it involves mixing of gametes to two different parents which are produced (gametes) by meiosis
Question 6
1 / -0

Which among the following imbibes more water ?

A
Wooden plank

B
Pea seeds

C
Corn flour

D
Silk cloth

Solution

Pea seeds have a cell membrane that can allow passage of water easily. This means that it has a more permeable cell membrane. As a result, they imbibe more water.
So, option B pea seeds are the correct answer.
Question 7
1 / -0

Apoplast movement of water occurs

A
Through cell wall

B
Through plasma membrane

C
Through cytoplasm

D
Through middle lamella only

Solution

Apoplast comprises of non living components ie intercellular spaces and cell wall. Symplast comprises of living components i.e., protoplasm, cell membrane and plasmodesmata. Fast movement of water due to physical forces occurs through apoplast. The movement through apoplast is fast but unregulated.
Question 8
1 / -0

What are the types of osmosis?

A
Endosmosis

B
Exosmosis

C
Both A and B

D
None of these

Solution

Osmosis is regulated by the inflow and outflow of water molecules from the cell or body through a semipermeable membrane. Endosmosis is the inflow of water or solvent whereas, exosmosis is the outflow of water or solvent from the cell through a semipermeable membrane.
Question 9
1 / -0

The shrinking of protoplasm in a plant cell, is called as

A
Plasmolysis

B
Deplasmolysis

C
Flaccidity

D
Turgidity

Solution

Plasmolysis in a plant cell is defined as the process of shrinkage of the protoplasm as a result of loss of water from the cell. It occurs when plant cells are placed in a solution that has a higher concentration of solutes than the cell does. In this, plant cell is kept in hypertonic solution. When cell is placed in hypotonic solution, it is called as turgidity. If plant cell is kept in an isotonic solution so that it is neither turgid nor plasmolyzed, it is called as flaccidity.
Thus, the correct answer is option B.
Question 10
1 / -0

Absorption of mineral elements from the soil occurs through:

A
Diffusion

B
Active transport

C
Osmosis

D
All of the above

Solution

The absorption of mineral elements from the soil involves active transport by the cells. Minerals may also be absorbed as ions rather than salts.

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Re-Attempt Weekly Quiz Competition

Transport in Plants Test - 12

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Transport in Plants Test - 12

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SHARING IS CARING

Question 1

OP

SP

TP

WP

Solution

Question 2

$$=0$$

> 0

< 0

Between 0 to 1

Solution

Question 3

Bursts

Swells up

Become turgid

Become flaccid

Solution

Question 4

Minimum

Less than DPD

Maximum

Variable

Solution

Question 5

Longer viability of seeds

Prolonged dormancy

New genetic combination leading to variation

Large biomass

Solution

Question 6

Wooden plank

Pea seeds

Corn flour

Silk cloth

Solution

Question 7

Through cell wall

Through plasma membrane

Through cytoplasm

Through middle lamella only

Solution

Question 8

Endosmosis

Exosmosis

Both A and B

None of these

Solution

Question 9

Plasmolysis

Deplasmolysis

Flaccidity

Turgidity

Solution

Question 10

Diffusion

Active transport

Osmosis

All of the above

Solution

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