Compounds and Nutrients

Level: Grade 12
1. Which of the following foods are particularly rich sources of Vitamin C?
citrus
kiwi fruit
liver
egg yolk
2. What kind of protein forms when three amino acids link together

3. Which element is essential for the formation of haemoglobin?
calcium
iron
zinc
magnesium
4. The prolonged absence of thiamine (Vitamin B1) leads to a disease called ----?
pellagra
beri beri
xeropthalmia
rickets
5. What label is given to the protein part of the enzyme-co-enzyme complex?

6. What process is required for proteins to be broken down into amino acids?

7. Which element is the basis of all organic compounds?
nitrogen
carbon
oxygen
hydrogen
8. Iodine is absolutely essential in the formation of ......?

9. Tick the statements that are true.
Lipids form when fatty acids and glyceros combine.
The ratio of H:O in lipids is different compared with that of water.
Lipids comprise the elements C, H, and O.
Lipids may have phosphorous as an additional element.
10. Niacin is a vitamin.
TrueFalse

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