Introduction: The need for food

Question 1

What are nutrients?

Answer 1

Nutrients are the chemical substances, present in food, they are used by organisms.

Question 2

What is nutrition in an organism?

Answer 2

Nutrition is the way in which an organism obtains and uses food.

Question 3

What are nutrients essential for?

Answer 3

They are essential to maintain metabolism and continuity of life for all living organisms.

Question 4

What are nutrients necessary for? (3)

Answer 4

Nutrients are necessary:
as a source of energy.
to make chemicals needed for metabolic reactions.
As the raw materials for the growth of structures in the organism.