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State whether the following statements are True or False. If false, correct them. (a) Silkworms are caterpillars of the silk moth. (b) In India, camels and goats are generally reared for obtaining wool. (c) The rearing of silkworms for obtaining silk is called silviculture. (d) In the process of obtaining wool from fleece, sorting is done after scouring. (e) Yak hair is not used to make woollen fabric.

(a) True Silk moth is an insect which is responsible for yielding silk fibre. Silk moths lay eggs, from which larvae come out. These are called... View Article

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. (a) Which organ secretes the bile juice? (b) Why is digestion of fats difficult as compared to that of other nutrients? (c) How does bile juice help in digestion of fat? (d) Where is the digestion of fat completed? (e) Does bile juice digest fat completely?

(a) Liver, the largest gland of the human body produces bile juice which gets stored in gall bladder and used when required. (b) Digestion of... View Article