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प्रश्न
The inner wall of the small intestine has many finger-like outgrowths called ______.
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उत्तर
The inner wall of the small intestine has many finger-like outgrowths called villi.
Explanation:
Villi increase the surface area for absorption, allowing nutrients to be absorbed more efficiently into the bloodstream.
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संबंधित प्रश्न
Pancreas, Gall bladder, Glomerulus, Liver
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
The first enzyme to mix with food in the digestive tract is:
(a) pepsin
(b) cellulose
(c) amylase
(d) trypsin
List in tabular form two differences between pepsin and trypsin.
What is roughage? Give two examples.
Write True or False in the following statement
Molars help in cutting and tearing food.
State whether the following statement is True or False.
The temporary set of teeth includes incisors, canines, and premolars only.
Define the following term:
Egestion
Fill in the blank.
Peristalsis is caused by _____________________________.
State whether the following statements are True or false: Na+ is absorbed in intestine by sodium pump.
Mark odd one in the series:
The question has four options. Choose the correct answer:
Uvula can close the opening of
Write down the explanation.
Explain why human dentition is considered as thecodont, diphydont and heterodont.
What is the length of the alimentary canal?
Circle the odd one.
Observe the diagram of Human digestive system.
Match the labeling referred in column I and correlate with the function in column II.
| Column I | Column II | |
| i. | a. | The length of this depends on food the organism eats. |
| ii. | b. | Initial phase of starch digestion |
| iii. | c. | Increase the efficiency of lipase enzyme action |
| iv. | d. | This is the site of the complete digestion of carbohydrates, proteins and fats. |
What are the compounds present in the food?
Given below from (i) to (iv) are some food items.
- Boiled and mashed potato
- Glucose solution
- A slice of bread
- Mustard oil
Which of the above will give a blue-black colour when tested with iodine?
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 ______.
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:
