Cellular Respiration & Fermentation

What is cellular respiration?

• A process that converts sunlight into energy

• A method of photosynthesis in plants

• The process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

• A way for cells to store energy for later use.

What are the end products of fermentation?

• Alcohol, carbon dioxide, and lactic acid

• Oxygen and glucose

• Nitrogen and ammonia

• Water and salt

What is the significance of the mitochondria in cellular respiration?

• Mitochondria are responsible for photosynthesis in plant cells.

• Mitochondria are the powerhouse of the cell where the Krebs cycle and electron transport chain occur, producing the majority of ATP.

• Mitochondria help in the synthesis of proteins within the cell.

• Mitochondria are involved in the detoxification of harmful substances.

What is fermentation?

• A metabolic process that converts sugar to acids, gases, or alcohol in the absence of oxygen.

• A process that requires oxygen to produce energy.

• A method of cooking food at high temperatures.

• A technique used to preserve food by freezing.

What is the difference between aerobic and anaerobic respiration?

• Aerobic respiration occurs without oxygen, while anaerobic respiration requires oxygen.

• Both aerobic and anaerobic respiration require oxygen.

• Aerobic respiration requires oxygen, while anaerobic respiration occurs without oxygen.

• Anaerobic respiration is more efficient than aerobic respiration.

What is the role of oxygen in cellular respiration?

• Oxygen is used to produce glucose during photosynthesis.

• Oxygen is the final electron acceptor in the electron transport chain, allowing for the production of ATP.

• Oxygen is a byproduct of cellular respiration that is released into the atmosphere.

• Oxygen is required for the synthesis of proteins in the cell.

What is glycolysis?

• A process that converts glucose into pyruvate, producing ATP.

• A method of protein synthesis in cells.

• A type of cellular respiration that occurs in the mitochondria.

• A pathway for lipid metabolism in the liver.

How do muscle cells respond to a lack of oxygen during strenuous activity?

• Muscle cells switch to lactic acid fermentation to produce energy.

• Muscle cells increase aerobic respiration to maximize energy production.

• Muscle cells stop producing energy altogether.

• Muscle cells convert fat into glucose for energy.

What type of fermentation occurs in human muscle cells during intense exercise?

• Alcoholic fermentation

• Lactic acid fermentation

• Acetic acid fermentation

• Citric acid fermentation

What is ATP?

• A molecule that carries energy within cells.

• A type of protein that helps in digestion.

• A carbohydrate used for energy storage.

• A lipid that forms cell membranes.