This question was attempted by many candidates and their performance was poor. In part (a)(i) many candidates correctly listed food sources of vitamin B and in(a)(ii) many candidates could not correctly state deficiencies of vitamin B. In part (b) candidates could not correctly state functions of vitamin B. In part (c) candidates could not correctly state symptoms of marasmus, they wrote swollen stomach, narrow leg and skin infection as symptoms of marasmus instead of swollen legs, shrunken appearance, retarded growth, wrinkled skin and lost of hair.
However, the expected answers are as follows
7(a) (i) Food Sources of vitamin B
- whole grains/brown rice/unpolished rice
- meat
- fish
- milk
- vegetable
- palm wine
(ii) Deficiencies of Vitamin B
- loss of appetite
- beri-beri
- paralysis
- skin infections
- slow growth
- bood disorders
Functions of vitamin B
- stimulates appetite
- maintains muscle
- promotes health of the nervous system
(c) Symptoms of marasmus
- swollen legs
- shrunken appearance
- retarded growth
- wrinkled skin
- lost of hair
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