EVERYDAY SCIENCE

Detailed explanation-1: -If oxygen is available, aerobic respiration will go forward. In mitochondria, pyruvate will be transformed into a two-carbon acetyl group (by removing a molecule of carbon dioxide) that will be picked up by a carrier compound called coenzyme A (CoA), which is made from vitamin B5.

Detailed explanation-2: -High oxygen levels allow cells to do aerobic respiration, which requires oxygen to make ATP and produces more ATP than in the absence of oxygen, called anaerobic respiration.

Detailed explanation-3: -Anaerobic metabolism and loss of adenosine triphosphate (ATP) occur when oxygenated blood is not delivered to cells, resulting in cellular membrane breakdown and anaerobic metabolism.

Detailed explanation-4: -While most aerobic respiration (with oxygen) takes place in the cell’s mitochondria, and anaerobic respiration (without oxygen) takes place within the cell’s cytoplasm.

Detailed explanation-5: -Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.