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प्रश्न
A group of organs together make up an ______ system.
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उत्तर
A group of organs together make up an organ system.
संबंधित प्रश्न
The largest gland in the human body is ______.
The inner wall of the small intestine has many finger-like outgrowths called ______.
The tongue helps in mixing food with saliva.
Name any four life processes in living things.
Fill in the following blank with suitable word :
Iodine turns blue-black on reacting with ....................
What is the function of enzymes in the human digestive system?
If the saliva is lacking in salivary amylase, then which of the following processes taking place in the buccal cavity will be affected?
(a) proteins breaking down into amino acids
(b) starch breaking down into sugars
(c) fats breaking down into fatty acids and glycerol
(d) intestinal layer breaking down leading to ulcers
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.
(a) What are (i) organisms A, and (ii) substance B?
(b) What are (i) part C, and (ii) part D, of tooth known as?
(c) By what name are the holes E in the tooth known?
(d) Name the part F of the tooth.
(e) What will happen if organisms A reach part F of the tooth known?
Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.
With which human organ system (or human systems) is villi associated?
How is the liver an important organ in our body?
Answer in detail.
You had eaten bread in the morning. Starting from the mouth, explain how it is digested?
Describe the following: Emulsification
Match items in column A with the appropriate items in Column B:
| Column A | Column B | ||
| 1 | HCl | a | Lactose |
| 2 | Rennin | b | Pellagra |
| 3 | Enteropeptidase | c | Rumen |
| 4 | Cellulose | d | Pepsin |
| 5 | Ptyalin | e | Starch |
| 6 | Vitamin | f | Pernicious anaemia |
| 7 | Intestinal juice | g | Trypsin |
| 8 | Bile salt | h | Casein |
| 9 | Vitamin A | i | Micelle |
| 10 | Goitre | j | Night-blindness |
| k | Iodine | ||
Throughout the length of the alimentary canal the layer which shows the presence of goblet cells is ______
(i)______ and (ii)______ form the common bile duct.
What is digestion?
Name the correct substrates for the following enzymes
- Trypsin
- Amylase
- Pepsin
- Lipase
Draw the diagram of the alimentary canal of man and label the following parts. Mouth, Oesophagus, Stomach, Intestine.
Digestion of food starts in ______ and gets completed in ______.
