Lucture 3

Question 1

what is food?

Answer 1

Food is the basic necessity of life

Question 2

Why food is important?

Answer 2

1) to keep fit 2) to carry on all the life processes

Question 3

What are autotrophic ?

Answer 3

They prepare their own food like green plants

Question 4

What are heterotrophic organisms ?

Answer 4

They depands on others

Question 5

What are nutrients ?

Answer 5

They are the organic or inorganic substances wich help in our survival and in maintaining proper health .`

Question 6

What are the importance of nutrients ?

Answer 6

1)supplies the body with energy
2)builds and repairs body tissues
3)regulates the body metabolism

Question 7

What are the two categories of nutrients ?

Answer 7

1)macronutrients
2)micronutrients

Question 8

What are the macronutrients ?

Answer 8

Nutients required in a large amount of.
Ex:carbohydrates ,fats , proteins and water contained in food comprise macronutrients .

Question 9

What are the micronutrients ?

Answer 9

Nutrients required in small amounts .
Ex:vitamins ,minerals from only a small fraction of the total weight of the food ?

Question 10

What is photosynthesis?

Answer 10

It is the process by which plants, some bacteria use carbon dioxide, water and the energy from sunlight to produce glucose and oxygen.