Solute Potential

Q. Two chambers, $A$ and $B$, containing solutions are separated by a semipermeable membrane.
$\left(a\right)$ Solution of which chamber has a lower water potential?
$\left(b\right)$ Solution of which chamber has a lower solute potential?
$\left(c\right)$ In which direction will osmosis occur?
$\left(d\right)$ Which solution has a higher solute potential?
$\left(e\right)$ At equilibrium which chamber will have lower water potential?
$\left(f\right)$ If one chamber has a $\Psi$ of $2000kPa$, and the other $1000kPa$, which is the chamber that has the higher $\Psi$?
$\left(g\right)$ What will be the direction of the movement of water when two solutions with ${\Psi }_w=0.2MPa$ and ${\Psi }_w=0.1MPa$ are separated by a selectively permeable membrane?

Q. Two chambers, A and B, containing solutions are separated by a semipermeable membrane.

(d) Which solution has a higher solute potential?

Q. A hypothetical arrangement of plant cells $(\text{A, B, C}$ and $\text{D})$ is given below–

1. $\text{D → B → C → A}$
2. $\text{A → C → B → D}$
3. $\text{D → B → A → C}$
4. $\text{D → A → C → B}$

Q.

Why is solute potential always negative explain?

Q. Which of the following statements is/are correct about the given figure?


a) Water potential of chamber B is more negative
b) Diffusion of solute will take place from chamber B to chamber A
c) Diffusion of solvent will take place from chamber A to B
d) Osmotic pressure of chamber B is higher than chamber A

1. Only a and d
2. b, c and d
3. Only a and c
4. a, c and d

Q. Based on the figure given below which of the following statements is not correct?

1. Movement of solvent molecules will take place from chamber A to B
2. Movement of solute also will take place from A to B
3. Presence of a semipermeable membrane is a prerequisite for this process to occur
4. The direction and rate of osmosis depends on both the pressure gradient and concentration gradient

Q. Why does a cell shrink when placed in salt solution?

1. Cells shrink because the cytoplasm will decompose when placed in salt solution
2. Mineral salts will break the cell wall, causing the cells to shrink
3. Salt-water enters the cell and breaks the cell.
4. Water comes out of the cell by exosmosis, causing it to shrink

Q.

Does osmosis use ATP?

Q. Differentiate between
Osmotic pressure and osmotic potential.

Q. If a cell A with DPD 4 bars is connected to cell B, C and D, whose osmotic pressure (OP) and turgor pressure (TP) are respectively 4 and 4, 10 and 5, 7 and 3 bars, the flow of water will be

1. B to A, C and D
2. A and D to B and C
3. C to A, B and D
4. A to B, C and D

Q. Find the correct pathway of movement of water in the given diagram of cells.

1. 
2. 
3. 
4. 

Q.

Does osmotis depend on temperature

Q. Ascent of sap is due to which of the following force?

1. Imbibition
2. Cohesive force
3. Cellular force
4. Atmospheric pressure

Q. Relay pump theory of ascent of sap was proposed by

1. Bose
2. Westermaler
3. Von sachs
4. Godlewski

Q. Match the columns and identify the correct combination :

Q. State whether the following statements are true or false .
Osmosis is concerned with the movement of water only and cannot directly affect the movement of dissolved substances into the roots and through the plant.

1. True
2. False

Q. Why does a cell shrink when placed in salt solution?

1. Mineral salts will break the cell wall

2. Water comes out by exosmosis

3. Cytoplasm will decompose

4. Salt water enters the cell

Q.

why water at a place when deep, appears to be stable?

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

1. OP
2. SP
3. TP
4. WP

Q.

If you are given two containers with 20 and 10 liters of water, you could achieve equilibrium by taking the __ amount of total water and pouring into both the containers.

Q. Water potential of a cell when it is placed in hypertonic solution:-

1. Decreases
2. increase
3. first increase then decrease
4. No change

Q. Choose the correct answers from the alternatives given :
In which one of the following processes the phenomenon of osmosis is not involved

1. Water entering a mesophyll cell from xylem vessel element
2. Water passing from root hair to adjacent cells
3. Water from soil entering a root hair
4. Water passing up a xylem vessel element to xylem vessel above it

Q.

Water moves down an energy gradient. This can be represented by -

1. Ψ = 0.2 to Ψ = -0.002

2. Ψ = 0.001 to Ψ = -0.01

3. Ψ = 0.1 to Ψ = 0

4. Ψ = 0.02 to Ψ = -0.002

Q. Based on the figure given below which of the following statements is not correct?

1. Movement of solvent molecules will take place from chamber A to B
2. Presence of a semipermeable membrane is a pre-requisite for this process to occur
3. Movement of solute also will take place from A to B
4. The direction and rate of osmosis depends on both the pressure gradient and concentration gradient

Q. Wilting appears due to excessive

1. Respiration
2. Photosynthesis
3. Absorption
4. Transpiration

Q. In a typical osmotic system there will not be net movement of water between two solutions, when the

1. System has reached equilibrium

2. System is proceeding towards equilibrium

3. Levels of both solutions become equal

4. Concentration of solute becomes equal

Q. Short / Long answer type questions.
Correlate the movement of materials across the cell membrane with the terms hypertonic, hypotonic, and isotonic.

Q. Which of the following is a type of cotransport?

1. Antiport
2. Symport
3. Both a and b
4. Uniport

Q. The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap, because of

1. Lignified thick walls.
2. Cohesion and adhesion.
3. Weak gravitational pull.
4. Transpiration pull.

Q. When an oak tree is kept in a poisonous solution, water rises to the top of the tree, although the tree is ready to take another supply of poisonous solution followed by uptake of even pure water. This shows that

1. Living cells are not involved in ascent of sap.
2. Living cells play a major role is ascent of sap.
3. Living cells play 60% role and vessels of xylem play 40% roles in ascent of sap.
4. Both xylem and phloem play a major role in ascent of sap.