Asked by Xander Serraguard on Jul 14, 2024
Verified
Callie is a world class marathon runner. Which of the descriptions about her dominant type of skeletal muscle is FALSE?
A) They split ATP slowly.
B) They have large deposits of myoglobin.
C) They are well adapted to anaerobic activity.
D) They have a well-developed blood supply.
E) They have low glycogen stores.
Myoglobin
An oxygen-binding protein found in the muscle tissues of vertebrates, similar to hemoglobin, which stores oxygen for use during muscular activity.
Skeletal Muscle
A type of muscle that is attached to bones and allows movement by contracting and relaxing.
Glycogen Stores
The stored form of glucose in the body, primarily found in the liver and muscle tissues, serving as a form of energy reserve.
- Differentiate between the characteristics and functions of various skeletal muscle fiber types.
Verified Answer
TA
Terrance AveryJul 15, 2024
Final Answer :
C
Explanation :
Marathon runners like Callie primarily use slow-twitch muscle fibers, which are adapted for aerobic activity and endurance, not anaerobic activity. Anaerobic activity is characteristic of fast-twitch muscle fibers, which are used in short, intense bursts of activity.
Learning Objectives
- Differentiate between the characteristics and functions of various skeletal muscle fiber types.