Question 2
Enzymes basically work by...
| A. | Directly providing ATP for muscle contraction |
| B. | Lowering the activation energy required to drive thereaction |
| C. | Combining with NAD+ to provide energy |
| D. | Helping oxygen attach to substrate during metabolism |
| E. | Both A and B |
Anaerobic glycolysis yields a net gain of...
After a few minutes of easy jogging at a submaximal intensity,my oxygen consumption and heart rate reach a plateau and stay atthat level for 20 to 30 minutes as I am jogging. With regards tooxygen consumption this would be an example of ...
| A. | intermittent exercise |
| B. | an oxygen deficit |
| C. | incremental exercise |
| D. | a steady state |
| E. | homeostasis |
Question 17
The RQ measured for a subject whohas been jogging easily at 70% VO2max for about 40 minutes and isin a steady state will likely be?
| A. | over 1.0 |
| B. | close to .7 |
| C. | close to .5
|
| D. | close to .9 |
Question 57
A person exercises in their “fat burning zone†for 4 hours at35% VO2peak. The O2 cost of exercise at thatwork rate is 0.5L/minute. Following exercise the subject rewardshimself with an ice-cream sundae (700kcal). The following statementis true(assume 5kcal/lit of O2):
| A. | The subject is in neutral energy balance |
| B. | The subject consumed fewer calories than they expended duringexercise |
| C. | The subject consumed more calories than they expended duringexercise |
| D. | Can’t say |
