Multiple Choice
When animals die, the lack of ATP causes muscles to stiffen in rigor mortis because
A) muscles cannot contract without ATP.
B) actin and myosin cannot bind without ATP.
C) actin and myosin cannot separate without ATP.
D) ATP is required for synthesis of protein filaments.
E) ATP forms cross-bridges between filaments.
Correct Answer:

Verified
Correct Answer:
Verified
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