Transport in Plants Test

Question 1
1 / -0

Read the given statements that refer to different stages of plasmolysis. Select the correct option regarding them.
(i) First stage of plamolysis, when osmotic concentration of cell sap is just equivalent to that of external solution.
(ii) Protoplast withdraws itself from corners of the cell wall.
(iii) Protoplast gets detached from the cell wall and attains a spherical shape.

A
(i)-Incipent plasmolysis, (ii)-Limiting plasmolysis, (iii)-Evident plasmolysis

B
(i)-Limiting plasmolysis, (ii)-Incipient plasmolysis, (iii)-Evident plasmolysis

C
(i)-Limiting plasmolysis, (ii)-Evident plasmolysis, (iii)-Incipient plasmolysis

D
(i)-Evident plasmolysis, (ii)-Incipient plasmolysis, (iii)-Limiting plasmolysis

Question 2
1 / -0

Unidirectional flow of water, minerals, some organic nitrogen and hormones occurs through

A
Xylem

B
Phloem

C
Root

D
Vascular tissue

Question 3
1 / -0

In which of the following pathways, movement of water occurs from one cell to another cell through plasmodesmata?

A
Apoplast pathway

B
Symplast pathway

C
Vacuolar pathway

D
Transmembrane pathway

Question 4

1 / -0

Following are the differences between apoplast pathway and symplast pathway. Which of the given differences is/are incorrect?

	Apoplast pathway	Symplast pathway
(i)	It consists of non-living parts of plant body, i.e., cell walls and intercellular spaces.	It consists of living parts of plant body, i.e., protoplasts connected by plasmodesmata.
(ii)	There is little resistance in the movement of water.	Some resistance occurs in the movement of water through symplast.
(iii)	It is slightly slower.	It is faster.
(iv)	Metabolic state of root directly affects apoplast pathway.	Metabolic state of root does not affect symplast pathway.

(iii) only

(i) and (iii) only

(iii) and (iv) only

(ii) and (iii) only

Question 5
1 / -0

Movement of solvent molecule from a region of its higher concentration to a region of its lower concentration through a semi-permeable membrane, is referred to as?

A
Simple diffusion

B
Facilitated diffusion

C
Osmosis

D
Active transport

Question 6
1 / -0

Salt is added to preserve meat, pickles, etc. because salting kills bacteria by the process of _______________.

A
Dissolution

B
Distillation

C
Plasmolysis

D
Imbibition

Question 7

1 / -0

Match column I with column II and select the correct option from the codes given.

Column I	Column II
A. Dixon and Jolly	(i) Root pressure
B. Stomata	(ii) Only water available to plants
C. Manometer	(iii) Transpiration
D. Capillary water	(iv) Transpiration pull
E. Potometer	(v) Rate of transpiration

A-(iv), B-(iii), C-(v), D-(ii), E-(i)

A-(i), B-(iii), C-(iv), D-(ii), E-(v)

A-(iv), B-(iii), C-(i), D-(ii), E-(v)

A-(v), B-(iv), C-(iii), D-(ii), E-(i)

Question 8
1 / -0

For a plasmolysed cell, which equation is correct?

A
DPD = OP + TP

B
DPD = - TP

C
DPD = OP

D
DPD = OP - TP

Question 9
1 / -0

Given figure demonstrates the translocation of organic solutes according to pressure flow hypothesis.
Which out of the following statements is incorrect regarding this?

A
A continuous high osmotic concentration is maintained in region P, which loads a sieve tube element by passively transporting solute molecules into it.

B
R shows the movement of $$H_2O$$ into sieve tube elements from nearby xylem vessels by osmosis.

C
Translocation of organic solutes takes place from region P with high turgor pressure to region Q with low turgor pressure.

D
In region Q, material is either consumed or is converted into insoluble storage forms resulting in decreased osmotic pressure.

Question 10
1 / -0

Amides are transported to the other parts of the plants via

A
phloem parenchyma

B
phloem companion cells

C
xylem vessels

D
phloem fibre

Submit Test

Transport in Pl...

Question 1

(i)-Incipent plasmolysis, (ii)-Limiting plasmolysis, (iii)-Evident plasmolysis

(i)-Limiting plasmolysis, (ii)-Incipient plasmolysis, (iii)-Evident plasmolysis

(i)-Limiting plasmolysis, (ii)-Evident plasmolysis, (iii)-Incipient plasmolysis

(i)-Evident plasmolysis, (ii)-Incipient plasmolysis, (iii)-Limiting plasmolysis

Question 2

Xylem

Phloem

Root

Vascular tissue

Question 3

Apoplast pathway

Symplast pathway

Vacuolar pathway

Transmembrane pathway

Question 4

(iii) only

(i) and (iii) only

(iii) and (iv) only

(ii) and (iii) only

Question 5

Simple diffusion

Facilitated diffusion

Osmosis

Active transport

Question 6

Dissolution

Distillation

Plasmolysis

Imbibition

Question 7

A-(iv), B-(iii), C-(v), D-(ii), E-(i)

A-(i), B-(iii), C-(iv), D-(ii), E-(v)

A-(iv), B-(iii), C-(i), D-(ii), E-(v)

A-(v), B-(iv), C-(iii), D-(ii), E-(i)

Question 8

DPD = OP + TP

DPD = - TP

DPD = OP

DPD = OP - TP

Question 9

A continuous high osmotic concentration is maintained in region P, which loads a sieve tube element by passively transporting solute molecules into it.

R shows the movement of $$H_2O$$ into sieve tube elements from nearby xylem vessels by osmosis.

Translocation of organic solutes takes place from region P with high turgor pressure to region Q with low turgor pressure.

In region Q, material is either consumed or is converted into insoluble storage forms resulting in decreased osmotic pressure.

Question 10

phloem parenchyma

phloem companion cells

xylem vessels

phloem fibre

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