Classify each scenario below as to primarily which type of work is being done.
1. maintaining a concentration gradient across a membrane
2. working on a dock, loading and unloading boxes into trucks all day
3. wound healing, recovering from surgery
4. enlarging one's muscles through body-building exercises
5. bringing glucose molecules inside brain cells so one can think
6. a thoroughbred horse, or greyhound dog, running around the track
A. chemical work
B. transport work
C. mechanical work
1. B. transport work
2. C. mechanical work
3. A. chemical work
4. A. chemical work
5. B. transport work
6. C. mechanical work
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Which body system would be affected by degeneration of cartilage in joints?
A. Cardiovascular B. Muscular C. Skeletal D. Nervous E. Lymphatic
Monocytes, like neutrophils, become professional phagocytes
a. True b. False Indicate whether the statement is true or false
Where would penicillin be secreted?
Identify the characteristics of action potentials
Multiple stimuli can create larger action potentials, and fewer stimuli can create smaller action potentials. The strength of the stimulus determines the frequency of the action potentials. The strength of the stimulus determines the magnitude of the action potential. They are all-or-none They are propagated in a non-decremental fashion.