Write down two main functions of

(a) Endoplasmic reticulum

(b) Lysosome

(a) Functions of endoplasmic reticulum:

(i) It forms supporting skeletal framework of the cell.

(ii) It serves as channels and helps in transporting the different materials like proteins between various regions in the cytoplasm as well as between the nucleus and the cytoplasm.

(b) Functions of lysosomes:

(i) Lysosomes help in intracellular digestion.

(ii) Lysosomes help to keep the cell clean by digesting any foreign material as well as worn-out cell organelles.