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प्रश्न
Fill in the blank.
Molars are meant for _____ the food.
उत्तर
Molars are meant for crushing the food.
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संबंधित प्रश्न
What is trypsin? What is its function?
Where are proteins first digested in the alimentary canal?
(a) small intestine
(b) oesophagus
(c) mouth
(d) stomach
If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in.
(a) What is W known as?
(b) What is (i) X, and (ii) Y?
(c) What are organisms Z?
(d) State one way of removing layer W from the teeth.
Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.
Mention two ways in which the ileum of the mammal is adapted for the absorption of digested food.
Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
Food are classified into three groups on the basis of the function they perform in our body. Name the three categories, and briefly give their functions. Also give their two sources each.
Fill in the blanks.
Removal of undigested food is called ________.
Answer in detail.
What changes occur in food in the mouth?
Choose the odd one:
