1.2.1 Aerobic and Anaerobic Respiration

• Aerobic respiration requires oxygen, while anaerobic respiration does not.


  True
• Aerobic respiration produces more energy
• Aerobic respiration occurs in the mitochondria
• Anaerobic respiration in plants and yeast produces ethanol
• Aerobic respiration occurs in the mitochondria
• What is the final product of glycolysis in aerobic respiration?

  Pyruvate
• Outline the stages of aerobic respiration in the correct order:

  1️⃣ Glycolysis

  2️⃣ Krebs Cycle

  3️⃣ Electron Transport Chain
• What is the overall reaction for aerobic respiration?

  $C_{6}H_{12}O_{6} +$$6O_{2} \rightarrow 6CO_{2} +$$6H_{2}O +$$\text{energy (ATP)}$
• What are the products of anaerobic respiration in plants and yeast?

  Ethanol and carbon dioxide
• Aerobic respiration occurs in the mitochondria, while anaerobic respiration occurs in the cytoplasm.


  True
• In glycolysis, glucose is broken down into two molecules of pyruvate
• Lactic acid fermentation occurs in the cytoplasm of cells.


  True
• Anaerobic respiration produces more ATP than aerobic respiration.

  False
• What is aerobic respiration?

  Breaks down glucose with oxygen
• Match the stage of aerobic respiration with its description:

  Glycolysis ↔️ Breaks down glucose in the cytoplasm

  Krebs Cycle ↔️ Occurs in the mitochondria and produces NADH

  Electron Transport Chain ↔️ Generates a large amount of ATP
• Aerobic respiration uses oxygen to release energy from glucose.

  True
• Anaerobic respiration in animals produces lactic acid as a byproduct.


  True
• Aerobic respiration requires oxygen, while anaerobic respiration does not.


  True
• Anaerobic respiration produces less ATP than aerobic respiration.


  True
• The Krebs cycle occurs in the mitochondria
• Respiration is the process of breaking down glucose to release energy in the form of ATP
• Where does the Krebs cycle occur in the cell?

  Mitochondria
• What is anaerobic respiration?

  Breaks down glucose without oxygen
• How does the ATP yield of anaerobic respiration compare to aerobic respiration?

  Lower
• Match the type of respiration with its key feature:

  Aerobic respiration ↔️ Requires oxygen

  Anaerobic respiration ↔️ Does not require oxygen
• In which stage of aerobic respiration is the most ATP produced?

  Electron Transport Chain
• What is the final product of glucose breakdown in anaerobic respiration without oxygen?

  Lactic acid
• What is the process called by which the liver uses lactic acid to produce glucose again?

  1️⃣ Gluconeogenesis
• Match the type of respiration with its by-products:

  Aerobic Respiration ↔️ Carbon dioxide and water

  Anaerobic Respiration in Animals ↔️ Lactic acid

  Anaerobic Respiration in Plants and Yeast ↔️ Ethanol and carbon dioxide
• What is produced in anaerobic respiration in animals?

  Lactic acid
• In animals, anaerobic respiration converts glucose into lactic acid
• Aerobic respiration requires oxygen
• Match the process with its product:

  Aerobic respiration ↔️ Carbon dioxide and water

  Anaerobic respiration (animals) ↔️ Lactic acid

  Anaerobic respiration (plants/yeast) ↔️ Ethanol and carbon dioxide
• In which organelle does the Krebs Cycle take place?

  Mitochondria
• Where does glycolysis occur in the cell?

  Cytoplasm
• Where does the Krebs cycle take place in the cell?

  Mitochondria
• Where does the electron transport chain occur in the cell?

  Mitochondrial membrane
• What is the overall efficiency of aerobic respiration compared to anaerobic respiration?

  More efficient
• Anaerobic respiration takes place in the mitochondria.

  False
• Match the type of respiration with its by-products:

  Aerobic respiration ↔️ Carbon dioxide and water

  Anaerobic respiration in animals ↔️ Lactic acid

  Anaerobic respiration in yeast ↔️ Ethanol and carbon dioxide