i)
What are food nutrients?
ii)
Classify the following food items as carbohydrate, fats and oil or protein:
Beans, palm fruits, meat, margarine, bread and maize.
A child is found not to be able to see at night
(i)
What deficiency disease may the child be suffering from?
(ii)
What food nutrient is the child lacking?
(iii)
List two sources of food substances that can provide the nutrient the child lacks.
Name three deficiency diseases associated with diet and state their causes.
i)
What is a deficiency disease?
ii)
Give two deficiency diseases and their causes.
(i)
Name three classes of food
(ii)
For each of the following food substances, give the major class of food to which it belongs:
Starch, milk, margarine, sugar
State three methods by which food can be preserved.
State the end-product of the following food substances:
(i)
Carbohydrates
(ii)
Proteins
(iii)
Fats
(i)
What is the preservation of food?
(ii)
List four methods of food preservation.
Explain why one of the methods you have listed is used for food preservation.
(i)
Explain the term balanced diet.
(ii)
Name any two classes of food which should be present in a balanced diet.
(iii)
Give one function of each class of food named in (a) (ii) above.
(i)
State two effects of lack of protein in the diet of humans.
(ii)
Describe briefly the chemical test for glucose.
Give three reasons why proteins are important in the diet of mammals.
i)
What is malnutrition?
ii)
State one symptom each of the following deficiency disease:
α)
scurvy;
β)
rickets.
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