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प्रश्न
The following statements describe the five steps in animal nutrition. Read each statement and give one word for each statement. Write the terms that describe each process.
Breaking of complex food substances into simpler and soluble substances.
उत्तर
Digestion
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संबंधित प्रश्न
What is meant by life processes? Name the basic life processes common to all living organisms which are essential for maintaining life.
The length of small intestine in a human adult is about:
(a) 4.5 m
(b) 1.5 m
(c) 3.5 m
(d) 6.5 m
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
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?
Find the odd one out. Give reasons for your choice
Name the enzymes secreted by the following: Ileum
Circle the odd one.
Salivary glands secrete ______.
In which layer of the wall of alimentary canal, secretary glands are present?
How does tooth enamel get corroded? What is the preventive measure for this?
