Question

Choose the wrong statement

• A. Cells swell in hypertonic solutions and shrink in hypotonic solutions
• B. Water potential is the kinetic energy of water which helps in the movement of water
• C. The absorption of water by seeds and dry wood takes place by a special type of diffusion called imbibition
• D. Solute potential or $\Psi_{s}$ is always negative
• E. Less than 1 % of the water reaching the leaves is used in photosynthesis and plant growth

Answer 1

Answer: (A)

A solution having low osmotic concentration as compared to another solution is called hypotonic while a solution with higher osmotic concentration is called hypertonic. When a cell is placed in hypertonic solution water moves out (from lower concentrated solution to higher concentrated solution) and shrinks. When a cell is placed in hypotonic solution, water moves in and cell swells up