Multiple Type Question [1 Mark]
Question 1- 11: Multiple Choice Questions- Choose the most appropriate option
1. Woody plants carry gaseous exchange through
(a) Root hair b) Lenticels c) Stem hair d) Epidermal cells
Ans: b) Lenticels
2. Which of the following are energy foods?
(a) Carbohydrates and fats (b) Proteins and mineral salts
(c) Vitamins and minerals (d) Water and roughage
Ans: a) Carbohydrates and fats
3. In which mode of nutrition does an organism derive its food from the body of another
living organism without killing it?
(a) Saprotrophic nutrition (b) Parasitic nutrition (c) Holozoic nutrition
(d) Autotrophic nutrition
Ans: b) Parasitic nutrition
4. In amoeba, food is digested in the:
(a) food vacuole (b) mitochondria (c) pseudopodia (d) chloroplast
Ans: a) food vacuole
5. The procedure used for cleaning the blood of a person by separating urea from it is
called:
(a) osmosis (b) filtration (c) dialysis (d) double circulation
Ans: c) Dialysis
6. The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation (b) transpiration (c) peristaltic movement (d) digestion
Ans: c) peristaltic movement
7. What are the products obtained by anaerobic respiration in plants?
(a) Lactic acid + Energy (b) Carbon dioxide + Water + Energy
(c) Ethanol + Carbon dioxide + Energy (d) Pyruvate
Ans: c) Ethanol + Carbon dioxide + Energy
8. Which part of the nephron allows the selective reabsorption of useful substances like
glucose, amino acids, salts and water into the blood capillaries?
(a) Tubule (b) Glomerulus (c) Bowman’s capsule (d) Ureter
Ans: a) Tubule
9. Name the substances whose build-up in the muscles during vigorous physical exercise may cause cramps?
(a) Ethanol + Carbon dioxide + Energy (b) Lactic acid + Energy
(c) Carbon dioxide + Water + Energy (d) Pyruvate
Ans: b) Lactic acid + Energy
10. Which is the correct sequence of body parts in the human alimentary canal?
(a) Mouth → stomach → small intestine → large intestine → oesophagus
(b) Mouth → oesophagus → stomach → small intestine → large intestine
(c) Mouth → stomach → oesophagus → small intestine → large intestine
(d) Mouth → oesophagus → stomach → large intestine → small intestine
Ans: b) Mouth → oesophagus → stomach → small intestine → large intestine
11. Identify the correct path of urine in the human body.
(a) Kidney → urinary bladder → urethra → ureter
(b) Urinary bladder → ureter → kidney → urethra
(c) Kidney → ureter → urethra → urinary bladder
(d) Kidney → ureter → urinary bladder → urethra
Ans: c) Kidney → ureter → urethra → urinary bladder
12. The exit of food from the stomach is regulated by a ………. muscle.
Ans: Muscular ring called the pyloric sphincter.
13. ………. is the longest part of the alimentary canal.
Ans: The Small intestine
14. The process of breakdown of glucose, (a six-carbon molecule) into pyruvate, (a three-carbon molecule), takes place in ……….
Ans: Glycolysis.
15. Breaking of pyruvate using oxygen takes place in……….
Ans: mitochondria
15. The blood has ………. cells which plug the leakage in the vessels by helping to clot the blood at the point of injury.
Ans: Platelets (thrombocytes)