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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.

 

(iv) Digestion functions are taken care of by the gastric glands present in the wall of the stomach by releasing the following :
1 hydrochloric acid, pepsin, and mucus  
2 hydrochloric acid, pepsin, and malic acid  
3 sulphuric acid, pepsin, and mucus  
4 hydrochloric acid, pepsin and mucus  

Ans.

(1)