Advertisements
Advertisements
प्रश्न
How is thorough chewing of food helpful in digestion?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Label the following figure of the digestive system.
A part of the human digestive system
Name the biological catalysts which bring about chemical digestion of food.
Iodine turns blue-black on reacting with ______.
What is meant by dental caries?
In human digestive system, bile is secreted by ______.
Where are proteins first digested in the alimentary canal?
Write the function of the following in the human alimentary canal:
HCl in stomach
Fill in the blank.
The human teeth appear in two sets, the first set is called primary which consists of only _______ teeth
Given alongside is the diagram of the human alimentary canal.
(i) Name the parts 1-11 indicated by guidelines.
1.____ 2.____ 3.____ 4.____ 5.____ 6.____ 7.____ 8.____ 9.____ 10.___ 11.____
(ii) State the function of the juice secreted by the part 1.
(iii) State the function of the three enzymes found in the juice secreted by part 3.
Find the odd one out. Give reasons for your choice.
Answer in detail.
Name the four types of teeth and their functions
State one difference in nutrition: Autotroph and Heterotroph
The question has four options. Choose the correct answer:
The hardest constituent of the tooth is
How do we know that we are hungry and that we should now eat?
What’s the solution?
A person has fainted, and a crowd of people has surrounded him.
Use your brain power!
Why do we sometimes choke suddenly while eating?
Why it is important to wear helmet while riding a bike?
Draw the diagram of the alimentary canal of man and label the following parts. Mouth, Oesophagus, Stomach, Intestine.
The enzymes present in the saliva convert ______.
Fill in the blanks using the words listed below.
| water, front, intestinal, salts, pseudopodia, back, vacuole |
- The digestion of all food components is completed by the ______ juice.
- Large intestine absorbs ______ and some ______ from the undigested food.
- Tongue is attached at the ______ to the floor of the mouth cavity and is free at the ______.
- Amoeba pushes out ______ around the food and traps it in a food ______.
