aerobic respiration

• aerobic respiration is the complete breakdown of glucose to carbon dioxide and water (requires oxygen)
• • occurs in the mitochondria of cell
  • enzymes for aerobic respiration are attached to the internal membrane, allowing reactions to occur over a large surface area due to folding.
• pyruvate produced from glycolysis is completely broken down to carbon dioxide and water
• to complete the breakdown of glucose, the two pyruvate molecules produced in glycolysis must enter a mitochondrion, where enzymes are available to allow the next series of reactions to occur
• 1. pyruvic acid enters mitochondria
  2. citric acid cycle (Krebs cycle) begins and makes 2 more ATP from 2 ADP. A waste product produced is CO2
  3. second set of reactions occurs in the electron transport system. This produces up to 34 molecules of ATP and water as a waste product
  4. this means in aerobic respiration, a combined total of 38 (usually lower) ATP can be produced from 1 glucose molecule

  → waste products are carbon dioxide and water