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प्रश्न
Define the following term:
Digestion
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उत्तर
Digestion — The process of breaking the food into smaller and simpler substances so that they can be easily used by the body is called digestion.
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संबंधित प्रश्न
Fill in the blank and rewrite the completed statement:
.................... is the largest gland in the body.
Iodine turns blue-black on reacting with ______.
The length of small intestine in a human adult is about:
(a) 4.5 m
(b) 1.5 m
(c) 3.5 m
(d) 6.5 m
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.
Write the function of the following in the human alimentary canal:
Bile juice
Fill in the blanks.
______ and ______ help in digestion but food does not pass through them.
Complete the following enzymatic reaction.
Sucrose \[\ce{->[sucrase]}\] ___________+ __________
Correct the spellings: Pespin
Who is telling a lie?
Liver: I am the largest gland in the body.
