EVERYDAY SCIENCE

Detailed explanation-1: -During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.

Detailed explanation-2: -Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which may be used as energy to power many reactions throughout the body. There are three main steps of cellular respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.

Detailed explanation-3: -Cellular respiration is a physical process by which mitochondria breaks down glucose in the presence of oxygen.

Detailed explanation-4: -In the cell cytoplasm, glucose is broken down to pyruvate. On entry to the mitochondria, pyruvate is converted to carbon dioxide and water. Its chemical potential energy is transferred to ATP.