Question

Which set of molecules is digested in human beings only in alkaline medium?

• A. Diglycerides, maltose, disaccharides, starch
• B. Isomaltose, proteins, triglycerides, dipeptides
• C. Isomaltose, starch, DNA ,dipeptides
• D. Lactose, dipeptides, RNA, maltose

Answer 1

The correct option is A Diglycerides, maltose, disaccharides, starch

In the buccal cavity, the saliva produced by the salivary gland contains salivary amylase or ptyalin. Saliva makes the environment of the buccal cavity alkaline where starch is digested to maltose by ptyalin. The environment of the small intestine is also made alkaline, pH 8.5, due to secretions from the exocrine part of the pancreas and the gall bladder. In the duodenum part of the small intestine lipases break down emulsified fats diglycerides, disaccharides like maltose, sucrose etc

So, the correct answer is option A.