Home
Class 11
BIOLOGY
Why is solute potential always negative ...

Why is solute potential always negative ? Explain `Psi_(w)=Psi_(s)+Psi_(p)`.

Text Solution

AI Generated Solution

### Step-by-Step Solution 1. **Understanding Solute Potential**: - Solute potential, also known as osmotic potential, is a measure of the tendency of water to move into a solution due to the presence of solute. It is influenced by the concentration of solute in the solution. 2. **Why is Solute Potential Negative?**: - In pure water, the solute potential is defined as zero because there are no solute particles present. When solute is added to water, it reduces the free energy of water molecules. The more solute that is added, the lower the free energy becomes, resulting in a negative value for solute potential. - Therefore, solute potential is always negative because it reflects the decrease in water's free energy due to the presence of solute particles. ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TRANSPORT IN PLANTS

    NCERT EXEMPLAR ENGLISH|Exercise Short Answer Type Questions|25 Videos
  • TRANSPORT IN PLANTS

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|7 Videos
  • TRANSPORT IN PLANTS

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|7 Videos
  • THE LIVING WORLD

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|10 Videos

Similar Questions

Explore conceptually related problems

Psi_(p) =0 in

Psi_(w)=Psi_(s) is not applied to

Knowledge Check

  • If Psih_(w)= water potential, Psi_(s)= solute potential, Psi_(p)= pressure potential then select the correct equation showing their inter-relation.

    A
    `Psi_(w)=Psi_(s)-Psi_(rho)`
    B
    `Psi_(w)=Psi_(s)+Psi_(rho)`
    C
    `Psi_(s)=Psi_(w)+Psi_(rho)`
    D
    `Psi_(w)=Psi_(s)=Psi_(rho)`
  • Similar Questions

    Explore conceptually related problems

    Consider the following i. For a solution at atmospheric pressure Psi_(w)=Psi_(s) ii. Psi_(w) (water potential) of a cell is affected by solute potential only iii. Psi_(p) (pressure potential ) is usually positive in xylem during the day which of the statements given above is/are correct?

    X and Y are adjacent living cells. The cell X has solute potential (Psi_(s)) of -9 bars and preesure potential (Psi_(p)) of bars wherease cell Y has solute potential (Psi_(s)) of -8 bars and pressure potential (Psi_(p)) of 5 bars. What will be the direction of water movement between these cells

    Which is true about Psi :-

    psi is more when

    Which subshell is represented by the wave function Psi_(431) ?

    Explain why : A solution is always clear and transparent.

    Water potential is denoted by the greek symbol Psi (Psi) and is expressed in pressure units such as pascals (Pa).