BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Similarly, the milk sugar lactose does not undergo digestion if you lack the required digestive enzyme. It, too, moves on to your large intestine, where bacteria feed on it, produce gas and cause flatulence or abdominal discomfort.

Detailed explanation-2: -Once in the body, carbohydrates are broken down into their basic units by digestive enzymes in the gastrointestinal tract. Granulated sugar, for example, is broken down into glucose and fructose, and lactose from dairy is broken down into glucose and galactose.

Detailed explanation-3: -Some people have a genetic condition called congenital sucrase-isomaltase deficiency (CSID), also called sucrose intolerance. People with this condition have a fewer number of enzymes to break down sucrose. They also have problems digesting maltose, a naturally occurring sugar found in grains.

Detailed explanation-4: -The human body does not differentiate between naturally occurring sugars and those that are added to foods. The metabolism of all carbohydrates follows the same pathway, yielding the core monosaccharides as the end result.