Question

Given below is an incomplete explanation of certain biological process/ term where a key word has been left out. Rewrite the complete explanation by inserting the keyword in the space indicated by '^'.

Osmosis is the movement of water molecules from its region of high concentration to its region of low concentration through a ‘^’ membrane.

Answer 1

Osmosis:

1. Osmosis is the process of movement of solvent molecules from a region of high solvent concentration to a region of low solvent concentration across a semipermeable membrane.
2. It involves the movement of only solvent molecules through a semipermeable membrane.
3. It helps in the water and mineral absorption by the roots from the soil.
4. It also helps in maintaining the turgidity and flaccidity of guard cells to regulate the opening and closing of stomata.

Final answer: The complete sentence is: Osmosis is the movement of water molecules from their region of high concentration to their region of low concentration through a semipermeable membrane.