Nutrition in Plant and Animals Worksheet-8

Nutrition in Plant and Animals Worksheet-8

1. The structural unit of a living being is:

(a) Atom                                        (b) Molecule

(c) Compound substance           (d) Cell

2. Xerophytes have very small leaves or spines to :

(a) Reduce weight                        (b) Reduce loss of water

(c) Reduce volume                       (d) Be beautiful

3. Which of the following is NOT needed for photosynthesis?

(a) Oxygen                                     (b) Carbon dioxide

(c) Chlorophyll                              (d) Water

4. Which of the following are called food factories of the plant?

(a) Leaves          (b) Stem           (c) Roots            (d) Flowers

5. Assimilation is:

(a) The process of breaking large food molecules into simpler molecules

(b) The process by which undigested food is ejected out of the body

(c) The process by which the digested food carried by the blood is taken in by the cells of the body

(d) Process of inter-exchange of oxygen and carbon dioxide between haemoglobin and the cells of the body

6. Large intestine absorbs:

(a) Antioxidants from the food material

(b) Complex carbohydrates which are undigested from the food material

(c) Water and some salts from the undigested food material

(d) All of these

7. The function of hydrochloric acid in the stomach is:

(a) Acidic medium is required by the enzymes to breakdown carbohydrates

(b) Acidic medium is required by the enzymes for breaking down fats

(c) Acidic medium is required by the enzymes for breaking down proteins

(d) All of these

8. Peristalsis is:

(a) Process of breakdown of protein molecules into amino acids by the pepsin enzyme

(b) Process of breakdown of large food molecules into simpler molecules by the amylase enzyme

(c) Movement of food through alimentary canal by the wavelike movement of involuntary muscles

(d) Process by which digested food is carried by the blood to different cells in the body

9. Digestion of fat in our body is faster than that of proteins or carbohydrates. The statement is

(a) True                                          (b) False

(c) Incomplete                              (d) Either False or incomplete

Answer Key:

1. (d)
2. (b)
3. (a)
4. (a)
5. (c)
6. (c)
7. (c)
8. (c)
9. (b)