Figure 10-2 Muscle Contractions
Use Figure 10-2 to answer the following questions:
-What is thought to happen in a muscle during the response shown in graph (a) ?
A) It is strengthening with exercise.
B) There is a gradual increase in calcium ion concentration in the sarcoplasm.
C) It is fatigued and must make repeated efforts to twitch normally.
D) It is aged and has lost contractile proteins.
E) It is producing more ATP as tension increases.
Correct Answer:
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