Question

Explain the following terms:
Exosomosis:

[1 Mark]

• A. Inward movement of solvent molecules through a selectively permeable membrane from a region of lower concentration to a region of higher concentration
• B. Loss of water in the form of water droplets by plants from the margins of their leaves through special pores known as hydathodes
• C. Outward movement of water through a semipermeable membrane when the surrounding solution is more concentrated
• D. Movement of molecules of a substance from a region of higher concentration to a region of lower concentration

Answer 1

The correct option is C Outward movement of water through a semipermeable membrane when the surrounding solution is more concentrated

Exosmosis is the movement of water outside the cells when a cell is placed in a hypertonic solution. The cell becomes flaccid because the solute concentration of the surrounding solution is higher than that inside the cytoplasm.