The vacuoles which help in the digestion of food particles engulfed by protists are:

Which of the following parts of a cell is non-living?

Read the following statements and identify the correct option.
$(i)$ Contractile vacuole takes part in osmoregulation and excretion.
$(ii)$ Food vacuole is formed by engulfing the food particles.
$(iii)$ The vacuole is bound by a double membrane called tonoplast.
$(iv)$ Vacuole can occupy up to $90$ percent of the volume of the cell.

What are gas vacuoles? State their functions.

Identify the correct pair regarding cell organelles and their membrane structure.

Tonoplast is a