Match the following.

1. exercise that requires the use of oxygen to produce energy
adenosine triphosphate
2. exercise that does not require the use of oxygen to metabolize energy
anaerobic
3. amount of time needed to perform an exercise
aerobic
4. a product of anaerobic exercise
lactic acid
5. how often an exercise is performed
intensity
6. an energy molecule produced when oxygen reacts with glucose
mode
7. type of exercise
frequency
8. level of effort needed to perform an exercise
duration