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प्रश्न
Define the following term:
Peristalsis
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उत्तर
Peristalsis is the rhythmic contraction and relaxation of the muscles of the alimentary canal that pushes the food along the gut.
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संबंधित प्रश्न
Which part of the digestive canal is involved in:
Complete digestion of food ______.
Match the items of Column I with suitable items in Column II.
| Column I | Column II | ||
| (a) | Salivary gland | (i) | Bile juice secretion |
| (b) | Stomach | (ii) | Storage of undigested food |
| (c) | Liver | (iii) | Saliva secretion |
| (d) | Rectum | (iv) | Acid release |
| (e) | Small intestine | (v) | Digestion is completed |
| (f) | Large intestine | (vi) | Absorption of water |
| (vii) | Release of faeces |
Draw a labelled diagram of the human digestive system. With the help of this diagram, describe the process of digestion of food in man (humans).
The first enzyme to mix with food in the digestive tract is ______.
Consider the following two statements A and B and select the right option from (i)-(iv) about their correctness.
- Small intestine is shorter than large intestine.
- Small intestine is wider than large intestine.
Options :
(i)Both the statements are correct
(ii) Both the statements are wrong
(iii) Statement A is correct, B is wrong
(iv) Statement B is correct, A is wrong
Write the function of the following in the human alimentary canal:
HCl in stomach
Name the three regions of the large intestine.
Fill in the blank.
Steapsin is also called _________
Fill in the blank.
Saliva contains salivary amylase which changes starch to _____.
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:
The ileum is characterized by
What bodily needs or sensations do you become aware of even though you are reading a book?
Write down the explanation.
Explain why human dentition is considered as thecodont, diphydont and heterodont.
All are functions of the liver, EXCEPT
The process of digestion is completed by:
A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains:
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 ______.
What is chyme?
What are villi?
