Please select a subject first
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Read the following passage carefully and answer the questions that follow it.
| Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas. |
- Which organ secretes the bile juice?
- Why is digestion of fats difficult as compared to that of other nutrients?
- How does bile juice help in the digestion of fat?
- Where is the digestion of fat completed?
- Does bile juice digest fat completely?
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Label the following parts in Figure and name them.
- The largest gland in our body.
- The organ where protein digestion starts.
- The organ that releases digestive juice into the small intestine.
- The organ where bile juice gets stored.
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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 | ||
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Silkworms secrete fibre made of ______.
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______ and ______ fibres are obtained from animals.
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Silk fibres come from ______ of silk ______.
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Match the items of Column I with the items given in Column II.
| Column I | Column II | ||
| (a) | Yak wool | (i) | Sheared hair |
| (b) | Angora goats | (ii) | Silkworm |
| (c) | Mulberry leaves | (iii) | Tibet and Ladakh |
| (d) | Scouring | (iv) | Jammu and Kashmir |
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Write a caption for the figures given in Figure.
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Write a caption for the figures given in Figure.
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Write a caption for the figures given in Figure.
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Write a caption for the figures given in Figure.
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A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because ______.
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While constructing a house in a coastal area, in which direction should the windows preferably face and why?
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When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
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A solution changes the colour of turmeric indicator from yellow to red. The solution is ______.
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On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?
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State whether the following statement is true or false. Correct the false statement.
Lime water turns red litmus blue.
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Look at figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
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Phenolphthalein gives ______ colour with lime water.
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Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pink in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
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