Q1. Excess dose of which of the following vitamins is harmful to the body?
(a) A, B, D, E
(b) C, D, E, K
(c) A, D, E, K
(d) B, C, D, E
Q2. Select from the following a set of ruminants:
(a) cow, deer, buffaloes
(b) cow, deer, dog
(c) buffaloes, deer, tiger
(d) deer, buffaloes, cat
Q3. Which group of seeds are rich source of fats?
(a) Mustard, sesame, gram, coriander
(b) Groundnut, mustard, olive, sesame
(c) Sesame, groundnut, wheat, moong
(d) Mustard, sesame, soybean, coriander
Q4. The role of villi in the intestine is to
(a) help in the conversion of starch into simple sugars
(b) help in transporting the undigested and unabsorbed food from small intestine to large intestine
(c) absorb water and some salts from the undigested food
(d) increase the surface area for absorption of digested food
Q5. The term nutrition means
(a) selecting good food, cooking it and eating
(b) intake of food, its absorption and utilization in the body
(c) ensuring that all food components are included in diet
(d) the process of digestion of food
Q6. Select the correct statement about autotrophs:
A. They constitute the first trophic level in every food chain.
B. They convert CO₂ and H₂O into carbohydrates in the absence of sunlight.
C. They store carbohydrates in the absence of sunlight.
D. They synthesis carbohydrates from CO₂ and H₂O in the presence of chlorophyll and sunlight.
(a) A, C and D
(b) A, B and C
(c) A and D
(d) C and D
Q7. The salivary amylase is lacking in the saliva of a person. Which of the following events in the mouth cavity of that person will be affected?
(a) Absorption of vitamins.
(b) Conversion of fats into fatty acids and glycerol.
(c) Conversion of starch into sugars.
(d) Conversion of proteins into amino acids.
Q8. The two raw materials required by green plants during photosynthesis are
(a) carbohydrates and oxygen
(b) carbon dioxide and oxygen
(c) carbohydrates and water
(d) carbon dioxide and water
Q9. Match the organisms in Column A with their actions in Column B:
Column – A
Column – B
1. Nitrogen Fixation
4. Curd formation
The correct matching is:
(a) A-1, B-4, C-3, D-2
(b) A-4, B-3, C-1, D-2
(c) A-4, B-1, C-2, D-3
(d) A-1, B-2, C-3, D-4
Q10. Prey-predator relationship is present in