Question

order the events that happen when muscles do not get enough oxygen during hard exercise. (2 points) glucose turns into lactic acid and a small amount of atp. muscle cells start to run low on oxygen. the buildup of lactic acid causes a burning feeling. the cells begin a process called lactic acid fermentation.

Explanation:

During hard - exercise, when oxygen is scarce in muscle cells, they start lactic acid fermentation. In this process, glucose is converted into lactic acid and a small amount of ATP. The buildup of lactic acid causes a burning sensation. So, the correct order is based on the sequence of these biological events.

Answer:

1. Muscle cells start to run low on oxygen.
2. The cells begin a process called lactic acid fermentation.
3. Glucose turns into lactic acid and a small amount of ATP.
4. The buildup of lactic acid causes a burning feeling.