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प्रश्न
The water from the digested food is mainly absorbed by
पर्याय
stomach
duodenum
colon
rectum
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उत्तर
colon
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संबंधित प्रश्न
What is the role of the acid in our stomach?
The gall bladder temporarily stores bile.
What substances are contained in gastric juice? What are their functions?
What substances are contained in pancreatic juice? What are their functions?
The first enzyme to mix with food in the digestive tract is ______.
Write the function of the following in the human alimentary canal:
Villi
Fill in the blanks.
Incisors are used for _____ and _____ the food.
Define the following term:
Egestion
Put the following processes in their correct sequence of occurrence during digestion.
peristalsis; tongue pushes the food; grinding and mixing saliva; cutting and tearing of food
Give reasons for the following:
All teeth in the mouth are not alike.
Answer in detail.
You had eaten bread in the morning. Starting from the mouth, explain how it is digested?
Observe the diagram given alongside and answer the following:
- Name the parts numbered 1-8.
- Which parts shown in the diagram are non-living?
- Is the tooth suited for cutting, tearing or grinding?
- What is the function of parts 8 and 7?
- What is the total number of teeth present in adult human beings?
- Write the dental formula of human beings.
Describe the digestion of starch.
Who is telling a lie?
Tongue: My taste-buds can tell only a sweet taste.
Match the two columns and select correct option.
| Column - I | Column - II | ||
| i. | Sphincter of Oddi | a. | Oesophagus and stomach |
| ii. |
Ileo-caecal sphincter |
b. | Stomach and small intestine |
| iii. | Pyloric sphincter | c | Ileum and caecum |
| iv. |
Gastro-oesophageal sphincter |
d. | Opening of hepato- pancreatic duct |
Which sphincter guards the opening of the hepato-pancreatic duct?
In which of the following groups of organisms, food material is broken down outside the body and absorbed?
Digestion of food starts in ______ and gets completed in ______.
Read the following passage carefully and answer the questions that follow it.
| Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas. |
- Which organ secretes the bile juice?
- Why is digestion of fats difficult as compared to that of other nutrients?
- How does bile juice help in the digestion of fat?
- Where is the digestion of fat completed?
- Does bile juice digest fat completely?
How does tooth enamel get corroded? What is the preventive measure for this?
