NEET BIOLOGY

Detailed explanation-1: -Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.

Detailed explanation-2: -In mechanical digestion, food is physically broken down into smaller pieces by tearing, slicing, churning and mixing. In chemical digestion, chemicals produced by the body break down food into very small pieces.

Detailed explanation-3: -The process of mechanical digestion continues in the stomach. This muscular organ churns and mixes the food it contains, an action that breaks any solid food into still smaller pieces. Although some mechanical digestion also occurs in the intestines, it is mostly completed by the time food leaves the stomach.

Detailed explanation-4: -The digestive system breaks down the food we eat into tiny parts to give us fuel and the nutrients we need to live. As food breaks down, we get amino acids from protein, simple sugars from starches, and fatty acids and glycerol from fats.

Detailed explanation-5: -Chemical and mechanical digestion are the two methods your body uses to break down foods. Mechanical digestion involves physical movement to make foods smaller. Chemical digestion uses enzymes to break down food.