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प्रश्न
Name any four life processes in living things.
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उत्तर
Life processes in living things are respiration, reproduction, excretion, Digestion.
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संबंधित प्रश्न
How are fats digested in our bodies? Where does this process take place?
Which part of the digestive canal is involved in:
Chewing of food ______.
Which of the organs performs the function in humans?
Absorption of food
Define a nutrient.
Pancreatic juice contains enzymes which digest ______.
| 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?
Explain the process of digestion of food in mouth, stomach and small intestine in human body.
Name the following
The organ into which the pancreatic juice and the bile juice are poured
Fill in the blanks.
Grinding of food is brought about by _______ and ______
Differentiate between.
Mechanical digestion and Chemical digestion
What do you mean by nutrition?
Define with examples: Heterotrophs
Describe the following: Emulsification
Correct the spellings: Ptorein
The question has four options. Choose the correct answer:
The dental formula of human beings is
Pushing forward the food that has been chewed is the function of the ______.
A fluid containing the digestive enzyme ____________ is secreted by the serous cells of salivary gland.
Salivary glands secrete ______.
Solve the crossword given as Figure.
| Across | Down | ||
| 1. | Cream-coloured digestive gland | 2. | Feeds with the help of pseudopodia |
| 3. | Undigested excretory solid residues | 6. | Total number of molars in one jaw of an adult |
| 4. | Organ that mixes saliva with the food | 8. | Largest gland |
| 5. | Point of defecation | 9. | Watery secretion in the mouth |
| 7. | Stored in gall bladder | 11. | A ruminant |
| 10. | Finger-like outgrowth in the small intestine | 12. | Form of food chewed by ruminants |
| 13. | Kind of taste buds | ||
| 14. | Kills bacteria in the stomach | ||
Give two reasons, why bile juice is considered to be an important secretion of liver in the process of digestion?
