Biomolecules and Macronutrients 1

1. Which of the following foods would BEST prevent constipation?

a. Chicken soup
b. Vegetable rice and fish
c. Fruit and vegetable salad
d. Wheat bread and cheese

2. Which of the following reagents gives a positive test for the main food present in a slice of baked Potato?

a. Biuret
b. Ethanol
c. Iodine solution
d. Benedict's solution

3. Kwashiorkor is a deficiency disease caused by a lack of

a. fats
b. Proteins
c. glycogen
d. carbohydrates

4. Which of the following are properties of enzymes? (i)They work best at a particular pH. (ii)They are not affected by temperature. (iii)They work on only one substrate..

a. I and II only
b. I and III only
c. II and III only
d. I, II and III

5. Which of the following vitamins assists in the process of blood clotting?

a. Vitamin A
b. Vitamin B
c. Vitamin D
d. Vitamin K

6. Which of the following is NOT a function of calcium?

a. Absorption
b. Development of healthy teeth
c. Development of healthy bones
d. Blood Clotting

7. Which of the following would MOST likely increase the risk of developing rickets? (i)Living in a tropical climate (ii)Having a cereal-based diet with limited access to milk (iii)Inability of the large intestine to absorb phosphate.

a. i only
b. ii only
c. ii and iii only
d. i, ii, iii

8. Oats would be found in the food group labelled

a. Fruits
b. Staples
c. Legumes
d. Vegetables

9. A volume of 2 cm^3 of Benedict's solution is added to 2 cm^3 of coconut water in a test tube, and the mixture is boiled for five minutes. The observation would MOST likely be a

a. Blue Solution
b. Purple Solution
c. White Emulsion
d. Brick-red precipitate

10. A person diagnosed with diabetes mellitus should

a. Increase fat intake
b. Decrease protein intake
c. Decrease carbohydrates intake
d. Increase fruit and vegetable intake

11. Which of the following statements is NOT true of anaemia?

a. It is caused by a lack of iron compounds in the diet.
b. It is developed because inadequate red blood cells are manufactured.
c. It can be treated by eating green vegetables, liver and egg yolk.
d. it is caused when the DNA coding for haemoglobin is altered.

12. Amino acids, derived from protein, are an essential nutritional component of our diet because they

a. provide much of our energy needs
b. are a good storage form of energy
c. are used in the building of new cells
d. speed up the metabolic reactions in the body

Biomolecules and Macronutrients 1^HSB

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