Question

multiple choice question
the molecule in the sarcoplasm that binds oxygen is
myoglobin
creatine
glycogen
hemoglobin

Explanation:

Myoglobin is an oxygen - binding protein found in the sarcoplasm of muscle cells. Creatine is involved in energy metabolism, glycogen is a storage form of glucose, and hemoglobin is the oxygen - binding molecule in red blood cells, not in the sarcoplasm.

Answer:

myoglobin