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Solution


Q.

Refer the passage given below and answer the following questions from (i) to (v).

In a nutshell, digestion involves breaking down large food molecules into water-soluble molecules that can be passed into the blood and transported to the body’s organs. For instance, carbohydrates are broken down into glucose, proteins into amino acids, and fats into fatty acids and glycerol. The digestive system involves “hollow” organs and “solid” organs. Food travels through the hollow organs — mouth, oesophagus, stomach, small intestine, large intestine, and anus. The solid organs — pancreas, liver, and gallbladder — add various products into the mix. Aside from the solid and hollow organs, the nervous and circulatory systems are also important in digestion, as are the bacteria that live in the gut.

 

(iii) Biological catalysts which help in food disintegration are also known as:
1 enzymes  
2 proteins  
3 fats  
4 nucleic acids  

Ans.

(1)