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प्रश्न
What are the end products of the digestion of: starch, proteins and fats respectively?
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उत्तर
| SUBSTRATE | END PRODUCTS |
| Starch | Maltose |
| Proteins | Small peptides and amino acids |
| Fats | Fatty acids and glycerol |
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संबंधित प्रश्न
How is the small intestine designed to absorb digested food?
Which part of the digestive canal is involved in:
Chewing of food ______.
When a person puts food in his mouth, then teeth cut it into small pieces, chew and grind it. The glands A in the mouth secrete a substance B which is mixed with the food by tongue. The substance B contains an enzyme C which starts the digestion of food in the mouth. The slightly digested food from the mouth goes down a tube D. The special type of movements E in the walls of tube D push the food into stomach for further digestion. The stomach wall secretes gastric juice containing three substance F, G and H. One of the functions of F is to kill bacteria which may enter the stomach with food. The substance G protects the inside layer of stomach from the damaging effect of substance F whereas substance H is and enzyme for digestion. The partially digested food then enters into small intestine for further digestion.
(a) What is (i) gland A (ii) substance B, and (iii) enzyme C?
(b) Name the tube D.
(c) What is the movement E known as?
(d) What are (i) F (ii) G, and (iii) H?
Define the terms 'nutrients'.
Define the following term :
Omnivore
List the enzymes and their action on food in the stomach and intestine.
Give any four reasons why water is necessary in our body.
Write the function of the following in the human alimentary canal:
HCl in stomach
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 | ||
The question has four options. Choose the correct answer:
Teeth present in the upper molar of human beings are
The process of digestion starts from the ______.
Pushing forward the food that has been chewed is the function of the ______.
Write down the explanation.
Explain the structure of tooth.
The process by which the body removes waste is called ______.
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 |
In the given histology of the alimentary canal, identify i, ii, and iii.
Salivary glands secrete ______.
______ is the vestigeal organ in human.
What are villi?
