Describe the alimentary canal of man.

5

(a)

Explain the process of breathing in man.

5

(a)

Explain the important of soil for plant growth.

5

(a)

How do carbohydrates, proteins and fats get digested in human beings?

5

(a)

Explain the mechanism of photosymthesis.

5

(a)

(a) Name two different ways in which glucose is oxidised to provide energy in various organisms.
(b) Write any two differences between the two ways of oxidation of glucose in organisms.

5

(a)

Describe the process of urine formation in kidneys.

5

(a)

(a)Draw the respiratory system of human beings.
(b)Label the following on the diagram drawn: Larynx, Trachea, Primary Bronchus, Lungs
(c)What happens to the carbon dioxide which collects in human tissues?

5

(a)

Explain the process of 'photosynthesis' in plants.List four factors which influence this process and describe how each of them affects the rate of the photosynthesis process.

5

(a)

Define the terms 'nutrients' and 'nutrients'.List two differences between 'Holozoic nutrition' and 'Saprophytic nutrition'.Give two examples of each of these two types of nutrition.

5

(a)