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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. (a) Transportation of absorbed food to different parts of the body and their utilisation. (b) Breaking of complex food substances into simpler and soluble substances. (c) Removal of undigested and unabsorbed solid residues of food from the body. (d) Taking food into the body. (e) Transport of digested and soluble food from the intestine to blood vessels.

The terms that describe each process are: a) Transportation of absorbed food to different parts of the body and its utilisation: Assimilation b)... View Article

Mark the following statements as True or False. If false, write the correct statements. (a) Tongue is attached to the roof of the mouth cavity at the back. (b) The large intestine is longer and wider than the small intestine of the human alimentary canal. (c) Mucus protects the stomach lining from damage. (d) All heterotrophs have a similar basic process of nutrition.

(a) True. Our tongue is attached to the roof of the mouth cavity at the back and the front is free moving. (b) False. The large intestine is... View Article

Cellulose-rich food substances are a good source of roughage in human beings because (a) human beings do not have cellulose-digesting enzymes. (b) cellulose gets absorbed in the human blood and converts into fibres. (c) the cellulose-digesting bacteria convert cellulose into fibres. (d) cellulose breaks down into smaller components which are egested as roughage.

a)Human beings do not have cellulose-digesting enzymes Cellulose-rich food substances are a good source of roughage for human beings because... View Article

Choose the correct order of terms that describes the process of nutrition in ruminants. (a) swallowing → partial digestion → chewing of cud → complete digestion (b) chewing of cud → swallowing → partial digestion → complete digestion (c) chewing of cud → swallowing → mixing with digestive juices → digestion (d) swallowing → chewing and mixing → partial digestion → complete digestion

a) Swallowing → Partial digestion → Chewing of cud → Complete digestion The digestion process in Ruminants begins by chewing and... View Article

Read the following statements with reference to the villi of the small intestine. (i) They have very thin walls. (ii) They have a network of thin and small blood vessels close to the surface. (iii) They have small pores through which food can easily pass. (iv) They are finger-like projections. Identify those statements which enable the villi to absorb digested food. (a) (i), (ii) and (iv) (b) (ii), (iii) and (iv) (c) (iii) and (iv) (d) (i) and (iv)

a) (i), (ii) and (iv) Inner walls of the small intestine have thousands of finger-like outgrowths called villi (singular villus). Villi... View Article