Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?

$(a)$ List any two structural differences and two similarities between a plant cell and an animal cell.
$(b)$ What would happen if an animal cell is kept in distilled water for $24$ hours?

Why is the mitochondrion called the 'powerhouse of the cell'?

When a living plant cell loses water through osmosis,there is contraction of the contents of the cell away from the cell wall. What is this phenomenon called?

What is the role of smooth endoplasmic reticulum in the liver cells of vertebrate animals?

What is the function of:
$(a)$ Cellulose in the cell wall?
$(b)$ The presence of deeply folded membranes in mitochondria?
$(c)$ Digestive enzymes in lysosomes?