respiration

• Cellular respiration requires oxygen and produces carbon dioxide as a waste product.
• Glycolysis occurs in the cytoplasm and does not require oxygen.
• There are three stages of cellular respiration: glycolysis, pyruvate oxidation (Krebs cycle), and electron transport chain.
• The process involves the breakdown of glucose to release energy, which is used by cells for various functions such as movement, growth, and reproduction.
• The alveoli are surrounded by capillaries, which allow oxygen to diffuse into the bloodstream.
• Cellular respiration involves three main processes: glycolysis, Krebs cycle, and the electron transport chain.
• Oxygenated blood is then pumped back to the heart through pulmonary veins.
• Glucose enters the mitochondria through facilitated diffusion or active transport.
• Oxygen is required to complete cellular respiration.
• Electron transport chain is located on the inner membrane of the mitochondria.
• In anaerobic respiration, there is no oxygen present so other molecules must be used instead.
• During exercise, more oxygen is needed to meet increased demand.
• Krebs cycle takes place in the mitochondria matrix, while oxidative phosphorylation occurs on the inner membrane of the mitochondria.
• During aerobic respiration, glucose molecules react with oxygen to produce carbon dioxide, water, and ATP.
• The Krebs cycle takes place in the mitochondrial matrix.
• The Krebs cycle is also known as the citric acid cycle or tricarboxylic acid (TCA) cycle.
• Pyruvic acid then undergoes further reactions to produce ATP, NADH, FADH2, and CO2.
• During aerobic respiration, oxygen enters the body through breathing and travels to the lungs where it is taken up by red blood cells.
• Carbon dioxide leaves the body when we exhale.
• ATP synthase is an enzyme that synthesizes ATP from ADP and phosphate groups during cellular respiration.
• Inside the mitochondria, enzymes break down glucose into two molecules of pyruvic acid.
• ATP synthase is an enzyme that synthesizes ATP from ADP and phosphate groups during cellular respiration.
• Oxygen enters the lungs through the nose or mouth and travels down the trachea and bronchioles until it reaches the alveoli.