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प्रश्न
How is thorough chewing of food helpful in digestion?
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उत्तर
It is very important to chew our food thoroughly as chewing of food helps to break down complex food materials into simpler substances. The act of chewing stimulates the salivary glands to release saliva. The saliva helps to moisten the food and form bolus, which can be swallowed easily. Saliva also contains special enzymes that help to break down carbohydrates.
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संबंधित प्रश्न
Write names of different parts of human digestive system and explain functions of any three parts.
Water from the undigested food is absorbed mainly in the ______.
Name the substances on which the following enzymes act in the human digestive system:
(i) Trypsin
(ii) Amylase
(iii) Pepsin
(iv) Lipase
The first enzyme to mix with food in the digestive tract is:
(a) pepsin
(b) cellulose
(c) amylase
(d) trypsin
Gastric juice contains
Define the following term:
Assimilation
List the enzymes and their action on food in the stomach and intestine.
The teeth called canines are a total of four in number on the sides of ______.
Fill in the blanks.
Removal of undigested food is called ________.
Write short answers
What do you mean by the emulsification of fat?
Write short answers
Write the names of three enzymes which are found in pancreatic juice.
Complete the following enzymatic reaction.
Maltose \[\ce{->[maltase]}\] ___________
Describe the human alimentary canal.
Who is telling a lie?
Tongue: My taste-buds can tell only a sweet taste.
Who is telling a lie?
Liver: I am the largest gland in the body.
Who is telling a lie?
Large intestine: I am 7.5 meter long.
All are functions of the liver, EXCEPT
Choose the odd one:
List the glands associated with digestion.
Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?
