Multiple Choice
Why is myosin important for contraction?
A) ATP forms a bridge binding actin to myosin.
B) Actin heads bend when attached to myosin.
C) Calcium ions form a bridge moving actin along myosin.
D) Myosin heads bend when attached to actin.
E) Myosin synthesizes new strands of actin,lengthening the musclE.
Correct Answer:

Verified
Correct Answer:
Verified
Q14: The precursor of bone is cartilage.
Q19: Muscle rich in slow-twitch fibers is darker
Q20: Bones regulate calcium homeostasis.
Q26: The vertebrae in descending order from the
Q27: Connective tissue of the musculoskeletal system includes<br>A)
Q27: Athletes who who compete in distance/endurance events
Q29: What keeps your head held up and
Q36: Functions of the vertebrate endoskeleton include<br>A) production
Q49: The process by which an arthropod sheds
Q50: The interaction of both the muscular system