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प्रश्न
What is dental plaque?
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उत्तर
Dental plaque is a sticky, colourless or pale yellow film that constantly forms on your teeth. It is a mixture of naturally occurring mouth bacteria, saliva, and tiny food particles.
संबंधित प्रश्न
Which part of the body secretes bile?
Define the following term :
Omnivore
Fill in the blanks.
Incisors are used for _____ and _____ the food.
Food are classified into three groups on the basis of the function they perform in our body. Name the three categories, and briefly give their functions. Also give their two sources each.
Answer in detail.
What is meant by digestion? How does it differ from nutrition?
State one difference in nutrition: Parasite and Saprophyte
A group of organs together make up an ______ system.
Match the following:
| 1. | Pancreatic juice | a. | Breaking starch |
| 2. | Salivary enzymes | b. | Digestive enzymes |
| 3. | Salivary gland | c. | Alimentary canal |
| 4. | Digestive tract | d. | Parotid |
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 | ||
How does tooth enamel get corroded? What is the preventive measure for this?
