Every muscle needs one molecule to keep contracting. That molecule is:
AATP
BAPR
CABS
DAMU
Answer & Solution
Correct answer: A. ATP
1. Contraction costs energy.
2. One molecule is the universal energy currency.
3. That molecule is ATP.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 10, Muscle Tissue._
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