Question

What are the functions of the following in a cell?
(a) cell membrane
(b) cytoplasm
(c) nucleus
(d) chromosomes
(e) mitochondria
(f) vacuoles

Answer 1

(a) Cell membrane: It separates the cells from their external environment. Cell membrane also protects the cell from injury.

(b) Cytoplasm: It contains raw materials and provides the same to cell organelles for their functioning.

(c) Nucleus: It stores genetic information in chromosomes that can be passed on to daughter cells. Nucleus controls the overall cell metabolism and other activities.

(d) Chromosomes: These contain genes. All the hereditary information is located in the genes. Chromosomes control the cell division and cell growth.

(e) Mitochondria: These are called powerhouses of the cell because food is oxidised inside them and energy that is liberated from it helps in performing various energy-requiring processes.

(f) Vacuoles: They play an important role in cell enlargement. Vacuoles store food, waste and water.