Aging Skeletal Muscles Develop Increasing Amounts of ________

Question

Aging skeletal muscles develop increasing amounts of ________.
A) glycogen reserves
B) ATP
C) fibrous connective tissue
D) myoglobin
E) myofibrils

Accepted Answer

Aging skeletal muscles undergo a process called sarcopenia, in which they lose muscle mass and strength. This process is characterized by an increase in fibrous connective tissue, which replaces muscle fibers and decreases the muscle's ability to contract. There is not necessarily an increase in glycogen reserves, ATP or myoglobin. Myofibrils may decrease in number with sarcopenia.