What is the primary difference between anaerobic and aerobic respiration?

• A. Anaerobic respiration occurs in the mitochondria, while aerobic respiration occurs in the cytoplasm.
• B. Anaerobic respiration uses glucose, while aerobic respiration uses fatty acids.
• C. Anaerobic respiration occurs without oxygen, while aerobic respiration requires oxygen.
• D. Anaerobic respiration produces more ATP than aerobic respiration.

Answer: (C)

Verified step by step guidance

1. Understand the basic definitions: Aerobic respiration is a process that requires oxygen to produce energy, while anaerobic respiration does not require oxygen.
2. Identify the location of each process: Aerobic respiration primarily occurs in the mitochondria, whereas anaerobic respiration occurs in the cytoplasm.
3. Consider the substrates used: Both processes can use glucose, but aerobic respiration can also utilize fatty acids and other substrates.
4. Compare the energy yield: Aerobic respiration produces significantly more ATP compared to anaerobic respiration due to the complete oxidation of glucose.
5. Recognize the role of oxygen: The key difference is that aerobic respiration requires oxygen to proceed, while anaerobic respiration occurs in the absence of oxygen.