Question

multiple choice questions
(1) The digestion of groundnut oil present in food produces:(A) Amino acid
(a) A and B
(B) Glycerol
(b) B and C
(C) Alcohol
(c) C and D
(D) Fatty acid
(d)B and D

(2) some crushed boiled rice,water and saliva mixture is warmed in a test-tude for about 15 to 20 minutes and 2or3 drops of dilute iodine solution are added to it. The colour produced will be:(a) violet (b) Green (c) blue-black (d) none of these

(3) The teeth in our mouth which are for piercing and tearing the food are called:(a) incisors (b) canines (c) molars (d) premolars

(4) which of the following are for biting and cutting the food? (a) premolars (b) canines (c) molars (d) incisors

(5) In human beings, the 16 teeth of each jaw consist of:
(a) 2 incisors,4canines,4 premolars and 6molars (b) 4 incisors,2 canines, 6 premolars and 4 molars (c) 4 incisors,2 canines,4 premolars and 6 molars (d) 2 incisors, 4 canines, 6 premolars and 4molars

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Answer 1

Answer:

1) B & D

2)violet

3) canines

4)incisors

5)-- I don't know, sorry

Explanation:

1) Groundnut oil contains fat, fats are converted into glycerol or fatty acids after digestion.

2)Rice contain starch eventhough it is boiled , since leaves synthesis food in the form of starch with the help of chlorophyll and sunlight.

Saliva converts carbohydrates ( starch) into simple sugars when food is chewed. Thus, when iodine is added to the food sample , the mixture turns violet ( presence of sugars)

3) Canines are pointed and sharp, thus helps in tearing and piercing food like scissors.

4) Incisors are axe-shaped ,thus helps in cutting and biting food.