Functions of cell organelles are

(i) Mitochondria : It performs the function of respiration and produces energy.

(ii) Endoplasmic-reticulum : It is a network of membrane, it provides large surface area for life function to take place.

(iii) Chloroplasts : These are green in colour, contain green pigment chlorophyll which help in manufacturing of food in plants.

(iv) Golgi complex : These collect and distribute materials made in the cell.

(v) Centrioles and centrosome : It helps in cell division in animal cells.

(vi) Ribosomes : They help in protein synthesis.

(vii) Vacuoles : They are used for storage of waste material.