AP BIOLOGY

Detailed explanation-1: -Oxidative phosphorylation is the major mechanism by which the large amounts of energy in foodstuffs are conserved and made available to the cell.

Detailed explanation-2: -Respiration using oxygen to break down food molecules is called aerobic respiration . Glucose is the molecule normally used for respiration – it is the main respiratory substrate . Glucose is oxidised to release its energy.

Detailed explanation-3: -Aerobic respiration releases a greater amount of energy compared to anaerobic respiration.

Detailed explanation-4: -Once in the bloodstream, glucose can be used immediately for energy or stored in our bodies, to be used later. However, our bodies need insulin in order to use or store glucose for energy. Without insulin, glucose stays in the bloodstream, keeping blood sugar levels high.

Detailed explanation-5: -Aerobic respiration Respiration is a chemical reaction which occurs in every one of the cells in the human body. It releases energy stored in glucose and without it, these cells would die. Aerobic respiration slowly releases lots of energy stored in glucose .