NEET BIOLOGY

ECOLOGY

EXCRETORY PRODUCTS AND THEIR ELIMINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Chemical change in digest occurs when
A
food is moving from one organ to another
B
you drink fruit juices
C
only bacteria is present in the intestines
D
salvia, acids and enzymes are present
Explanation: 

Detailed explanation-1: -Chemical digestion breaks down different nutrients, such as proteins, carbohydrates, and fats, into even smaller parts: Fats break down into fatty acids and monoglycerides. Nucleic acids break down into nucleotides. Polysaccharides, or carbohydrate sugars, break down into monosaccharides.

Detailed explanation-2: -Enzymes in the saliva begin to digest starches and fats. With the help of the tongue, the resulting bolus is moved into the esophagus by swallowing. The extensive chemical process of digestion begins in the mouth. As food is chewed, saliva, produced by the salivary glands, mixes with the food.

Detailed explanation-3: -Food digestion is a chemical change. In this process, large macromolecules are broken down into smaller molecules. It is done by the enzymes found in the stomach and intestines.

Detailed explanation-4: -Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.

There is 1 question to complete.