Transport in Plants Test

Result

Transport in Plants Test - 72

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of the following is correct about symplast?

A
Living continuum

B
Cell wall and intercellular space

C
Non-Living continuum

D
None of these
Solution
- The symplastic system is the system of interconnected protoplasts neighboring cells are connected through cytoplasmic strands that extend through plasmodesmata. Symplast cells have more than one nucleus
- During the symplastic moment, water travels through the plasmodesmata.
- As the symplastic system is the system of interconnected protoplast it is considered as a living continuum.
- Hence Living continuum is correct about symplast.
- So, the correct answer is 'Living continuum'.
Question 2
1 / -0

Water moves from a cell with ________ water potential to a cell with ________ water potential.

A
Higher, Lower

B
Lower, Higher

C
Less negative, More negative

D
Both (i) and (iii)

Solution

Water potential moves higher to lower and affected by both solute and pressure potential in the cell and outside the cell.
Question 3
1 / -0

Mark out the incorrect statements.
i) Bulk flow can be achieved through a positive hydrostatic pressure.
ii) Bulk flow can achieved through a negative hydrostatic pressure.
iii) Plasmolysis usually occurs in nature
iv) Imbibition also involves diffusion of water.

A
i & iii

B
Only iii

C
iii & iv

D
ii & iv

Solution

Plasmolysis doesn't occur in nature. It is the separation of plant cell cytoplasm from the cell wall due to the loss of water. It is mostly a laboratory-induced process and doesn't occur naturally.
Imbibition is one of the types of diffusion of water in which water is absorbed by colloidal solids.
Bulk flow is achieved through both positive and negative hydrostatic pressure.
So the correct option is C.
Question 4
1 / -0

Dry seeds when placed in water swells due to?

A
Imbibition

B
Absorption

C
Diffusion

D
Adsorption

Solution

Imbibition is the first phenomenon in seed germination. Imbibition is a passive physical process and is actually adsorption of water by the dry surface. It causes swelling of dry seeds.
Question 5
1 / -0

Swelling up of raisins when kept in water is due to

A
Osmosis

B
Exo-osmosis

C
Imbibition

D
Plasmolysis
Question 6
1 / -0

Which of the following statements about the mass flow hypothesis is wrong?

A
It is the accepted mechanism for translocation of sugars from source to sink

B
As glucose is prepared at source it is converted to source

C
Sucrose is actively loaded into a sieve tube

D
The process of loading at source produces a hypotonic condition in the phloem

E
Water in the adjacent xylem moves into the phloem by osmosis.

Solution
Question 7
1 / -0

They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?

A
Xylem tissue

B
Vascular tissue

C
Root hairs

D
Phloem tissue

Solution

Phloem tissue is a heterogeneous vascular tissue and complex tissue. It performs as a transport system for every soluble organic compound within vascular plants.
The correct answer is option (d),
Question 8
1 / -0

Which among the following have specialized tissue for conduction of water ?
i. Thallophyta
ii. Bryophyta
iii. Pteridophyta
iv. Gymnosperms

A
i and iv

B
ii and iii

C
iii and iv

D
i and ii

Solution

In Thallophytes and Bryophytes, the plant body is not differentiated into Roots, Stem, and leaves. Also, there are no water-conducting or nutrient-conducting structures and the transport of these substances is carried out via cell-to-cell diffusion. True water transport tissues, the Xylem, are characteristics of land plants that include the Pteridophytes, Gymnosperm and Angiosperms, for conducting water and minerals to the leaves from the soil. Xylem and Phloem first emerged in Pteridophytes and then evolved further in Gymnosperms and Angiosperms.
So, the correct answer is option C i.e. - 'iii and iv'.
Question 9
1 / -0

If the xylem vessels of a plant are plugged:

A
The leaves will turn yellow.

B
No food will be made.

C
The plant will wilt (shrivel).

D
The plant will continue to grow.

Solution

The xylem vessels is responsible for the transportation of water. Without the water transportation growth become stunned, and plant will wilt. But, the photosynthesis process still works.
Thus, the correct answer is (C).
Question 10
1 / -0

At atmospheric pressure a solution has $$\psi\,s = -5$$, what will the water potential be for this solution?

A
$$-5$$

B
$$5$$

C
$$0$$

D
Cannot be calculated.

Solution

Water potential $$\psi$$ = $$\psi_s$$ + $$\psi_p$$, at atmospheric pressure water potential is equal to solute potential, that is,
$$\psi$$ =$$\psi_s$$
Which is equal to -5.
So, the correct answer is '−5'

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Transport in Plants Test - 72

Result

Transport in Plants Test - 72

Score

-

Rank

-

SHARING IS CARING

Question 1

Living continuum

Cell wall and intercellular space

Non-Living continuum

None of these

Solution

Question 2

Higher, Lower

Lower, Higher

Less negative, More negative

Both (i) and (iii)

Solution

Question 3

i & iii

Only iii

iii & iv

ii & iv

Solution

Question 4

Imbibition

Absorption

Diffusion

Adsorption

Solution

Question 5

Osmosis

Exo-osmosis

Imbibition

Plasmolysis

Question 6

It is the accepted mechanism for translocation of sugars from source to sink

As glucose is prepared at source it is converted to source

Sucrose is actively loaded into a sieve tube

The process of loading at source produces a hypotonic condition in the phloem

Water in the adjacent xylem moves into the phloem by osmosis.

Solution

Question 7

Xylem tissue

Vascular tissue

Root hairs

Phloem tissue

Solution

Question 8

i and iv

ii and iii

iii and iv

i and ii

Solution

Question 9

The leaves will turn yellow.

No food will be made.

The plant will wilt (shrivel).

The plant will continue to grow.

Solution

Question 10

$$-5$$

$$5$$

$$0$$

Cannot be calculated.

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.