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प्रश्न
Why do we get instant energy from glucose?
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उत्तर
- Glucose is the simplest type of sugar. It can be absorbed directly by the intestine and quickly carried by blood to various cells in the body, where it is oxidized with oxygen and released as carbon dioxide, water, or energy.
- In this manner, we obtain rapid energy from glucose. Carbohydrates, proteins, and so on must be broken down into simpler compounds before they can be absorbed.
- As a result, they have to spend more time producing energy.
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संबंधित प्रश्न
The largest gland in the human body is ______.
The gall bladder temporarily stores bile.
What causes movement of food inside the alimentary canal?
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 process of digestion of food in humans begins in ______.
| 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. |
- What are (i) gland A, (ii) substance B, and (iii) enzyme C?
- Name the tube D.
- What is the movement E known as?
- What are (i) F, (ii) G, and (iii) H?
Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.
What is roughage? Give two examples.
Give Scientific reasons:
Consuming iodized salt in day to day diet is essential.
Fill in the blanks.
Grinding of food is brought about by _______ and ______
Write true or false for the below statement. Rewrite the false statements correctly.
The wave-like motion of stomach muscles to push the food is called peristalsis.
Differentiate between
Small intestine and Large intestine
Define with examples: Heterotrophs
Describe the following: Digestion of fat in the intestine
The question has four options. Choose the correct answer:
Teeth present in the upper molar of human beings are
Which option represents the CORRECT sequence of digestive organs between the mouth and the anus?
(i)______ and (ii)______ form the common bile duct.
Name the organism which lives in the digestive system of human ______.
Why do we eat?
List the parts of the digestive system.
