Anemia is caused due to the deficiency of:

Every chemical reaction in the body takes place in the presence of:

Which enzyme is produced by the stomach wall?

The chemical needed for the body to keep it in good health.

Which element acts as a heat insulator and helps to keep the mammals warm in cool conditions?

Which organ plays a major part in the physical breakdown of food?

Chemicals that take part in the reactions of digesting food and in speeding up reactions inside cells are called:

Proteins are made from:

What is the named of the acid produced by the stomach wall?

Where is the bile produced?