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प्रश्न
Digestion of starch starts in the stomach.
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
Digestion starts in the mouth. The enzyme amylase in saliva begins breaking down starch into simpler sugars before the food reaches the stomach.
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संबंधित प्रश्न
What substances are contained in gastric juice? What are their functions?
Name the substances on which the following enzymes act in the human digestive system:
(i) Trypsin
(ii) Amylase
(iii) Pepsin
(iv) Lipase
In human digestive system, the enzymes pepsin and trypsin are secreted respectively by:
(a) pancreas and liver
(b) stomach and salivary glands
(c) pancreas and gall bladder
(d) stomach and pancreas
Define the following term:
Peristalsis
________ is the largest gland in the body.
Draw a diagram of the human alimentary canal and label - gall bladder, pancreas, liver, and small intestine on it.
Fill in the blanks in the table (1-5) by selecting the suitable names of substances from the list given below:
(steapsin, peptones, fatty acids, proteoses, protein).
| Digestive Enzymes | Acts on | To convert into |
| (i) Pepsin | _________(2) | ________(3) and |
| (ii) _______(1) | Fats |
________(4) _________(5) |
What is the main function of bile?
State the four ways in which saliva is useful to us.
Define with examples: Heterotrophs
Describe the human alimentary canal.
Sketch and label a diagram of the digestive system and describe it in your own words.
Circle the odd one.
Identify the part of the digestive system which is vestigial in humans?
Select the correct pair of peptide hormones secreted by the alimentary canal.
The process of digestion is completed by:
In which part of the alimentary canal food is finally digested?
The exit of unabsorbed food material is regulated by ____________.
Following statements describe animal nutrition. Read the statement and give one word for the statement. Write the terms that describe process.
Breaking of complex food substances into simpler and soluble substances.
What is chyme?
