The raisins added to porridge swell up after some time. Name the process involved.

$(a)$ What role do vacuoles play in a typical plant cell?
$(b)$ What will happen if the Golgi apparatus is removed from the cell?
$(c)$ Why is the inner membrane of mitochondria deeply folded?

$(a)$ Write two points of difference between the nuclear region of a bacterial cell and the nuclear region of an animal cell.
$(b)$ Which structure present in the nuclear region of a living cell bears genes?

Name the cell organelles which are without a membrane.

Differentiate between: Nucleus and nucleoid.

Name the following:
$(i)$ The cells which have a changing shape.
$(ii)$ The cells which have a typical shape.