Questions: Which of the following statements accurately describes glycolysis? Multiple Choice 1. Glycolysis uses no molecular oxygen and occurs in the mitochondria. 2. Glycolysis uses molecular oxygen; however, it occurs in anaerobic environments. 3. Glycolysis uses no molecular oxygen; however, it can occur in aerobic environments. 4. Glycolysis uses molecular oxygen and occurs in aerobic environments. < Prev 38 of 50 Next >

The answer is the third one (or 3): Glycolysis uses no molecular oxygen; however, it can occur in aerobic environments.

Explanation for each option:

1. Glycolysis uses no molecular oxygen and occurs in the mitochondria.

   • Incorrect. Glycolysis does not use molecular oxygen, but it occurs in the cytoplasm, not the mitochondria.

2. Glycolysis uses molecular oxygen; however, it occurs in anaerobic environments.

   • Incorrect. Glycolysis does not use molecular oxygen at all. It can occur in both anaerobic and aerobic environments.

3. Glycolysis uses no molecular oxygen; however, it can occur in aerobic environments.

   • Correct. Glycolysis does not require molecular oxygen and can occur in both anaerobic and aerobic environments.

4. Glycolysis uses molecular oxygen and occurs in aerobic environments.

   • Incorrect. Glycolysis does not use molecular oxygen, although it can occur in aerobic environments.

Summary: Glycolysis is a metabolic pathway that breaks down glucose to produce energy. It does not require molecular oxygen and occurs in the cytoplasm of the cell. It can take place in both anaerobic and aerobic conditions.