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प्रश्न
Fill in the blank.
The _______ is a common opening of food pipe and windpipe
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उत्तर
The pharynx is a common opening of food pipe and windpipe
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संबंधित प्रश्न
| When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then from its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache. |
- What are (i) organisms A, and (ii) substance B?
- What are (i) part C, and (ii) part D, of tooth known as?
- By what name are the holes E in the tooth known?
- Name the part F of the tooth.
- What will happen if organisms A reach part F of the tooth known?
The water from the digested food is mainly absorbed by
Complete the following table by filling in the blanks 1 to 8.
|
Organ |
Enzyme |
Food acted upon |
Find product |
|
1 |
Pepsin |
2 |
3 |
| Mouth | 4 | 5 | Disaccharide |
|
6 |
7 |
Maltose |
8 |
Write short answers
Write the names of three enzymes which are found in pancreatic juice.
Answer in detail.
What happens to the nutrients absorbed in the bloodstream from the small intestine?
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.
Identify the labels i, ii, iii, and iv in the given diagram of tooth anatomy.
Salivary glands secrete ______.
What are villi?
Given below are two columns, Column I shows enzymes secreted by the glands in the alimentary canal of human beings and Column II indicates the components of food on which enzymes act. Choose the options showing correct matching:
