Components of Food Worksheet-2

Components of Food Worksheet-2

Multiple choice questions:

1. One gram of fat on oxidation gives:

(A) 6 kcal of energy                      (B) 12 kcal of energy

(C) 9 kcal of energy                      (D) 14 kcal of energy

2. Digestion of proteins occur in:

(A) Stomach and small intestine       

(B) Liver and small intestine

(C) Gall bladder and small intestine

(D) Pancreas and stomach

3. _______ and _______ are contractile proteins present in muscles.

(A) Keratin and collagen            (B) Keratin and collagen

(C) Keratin and Myosin              (D) Actin and collagen

4. _______acts as biocatalyst in the body.

(A) Mineral       (B) Vitamin       (C) Protein        (D) None of these

5. When Benedict solution is added to sample of onion solution, it gives the change in the colour of solution as shown in the figure. This test indicates that the onion has ____ sugar content.

(A) Low              (B) Medium      (C) High

6. Raju took dilute milk solution in a test tube and heated it for a min. He kept the test tube aside for cooling. After that, he had added 2 drops of copper sulphate and later on 2 drops of sodium hydroxide solution to it. The colour of the milk solution gets changed as shown in the figure. Thus, from the given observation he concluded the presence of ___ in milk. (Biuret test)

(A) Carbohydrates    (B) Fats              (C) Proteins

Match the following:

7. Match the column.

8. Match the column.

Answer Key:

1. (C)
2. (A)
3. (A)
4. (B)
5. (A)
6. (C)
7. 1-d; 2-a; 3-c; 4-b
8. 1-b; 2-a; 3-c