What is the molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction?
A) lactic acid
B) creatine
C) phosphocreatine
D) fatty acids

Question

What is the molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction?​
A) ​lactic acid
B) ​creatine
C) ​phosphocreatine
D) ​fatty acids

Quizplus · Accepted Answer

Phosphocreatine is a molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction. Lactic acid is produced during anaerobic respiration in muscles, but it is not specific to muscle tissue. Fatty acids are a source of energy for muscles during prolonged exercise, but they are not a rapid source of high-energy ATP.

What Is the Molecule That Is Found Only in Muscle