Question

Question 1. Which of the following are energy foods?

(a) Carbohydrates and fats

(b) Proteins and mineral salts

(c) Vitamins and minerals

(d) Water and roughage



Question 2. In which mode of nutrition an organism de-rives its food from the body of another living organism without killing it?

(a) Saprotrophic nutrition

(b) Parasitic nutrition

(c) Holozoic nutrition

(d) Autotrophic nutrition





Question 3. The mode of nutrition found in fungi is:

(a) Parasitic nutrition

(b) Holozoic nutrition

(c) Autotrophic nutrition

(d) Saprotrophic nutrition





Question 4. Roots of the plants absorb water from the soil through the process of:

(a) diffusion

(b) transpiration

(c) osmosis

(d) None of these



Question 5. The site of photosynthesis in the cells of a leaf is

(a) chloroplast

(b) mitochondria

(c) cytoplasm

(d) protoplasm





Question 6. In amoeba, food is digested in the:

(a) food vacuole

(b) mitochondria

(c) pseudopodia

(d) chloroplast



Question 7. Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?

(a) Starch breaking down into sugars.

(b) Proteins breaking down into amino acids.

(c) Absorption of vitamins.

(d) Fats breaking down into fatty acids and glycerol.















Question 8. Which region of the alimentary canal absorbs the digested food?

(a) Stomach

(b) Small intestine

(c) Large intestine

(d) Liver



Question 9. The contraction and expansion movement of the walls of the food pipe is called:

(a) translocation

(b) transpiration

(c) peristaltic movement

(d) digestion



Question 10. When a few drops of iodine solution are added to rice water, the solution turns blue- black in colour. This indicates that rice water contains:

(a) fats

(b) complex proteins

(c) starch

(d) simple proteins



Question 11. The exit of unabsorbed food material is regu-lated by

(a) liver

(b) anus

(c) small intestine

(d) anal sphincter



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Answer 1

Explanation:

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