Multiple Choice
Refer to the diagram of a sarcomere below.Which statement based on the diagram is true? 
A) The structure 1 consists of two chains made of monomers.
B) The structure 1 shortens in length as contraction occurs.
C) The structure 2 has a head that hydrolyzes ATP.
D) The zone labeled 3 shortens in length as contraction occurs.
E) The unit labeled 4 maintains a constant length as contraction occurs.
Correct Answer:
Verified
Correct Answer:
Verified
Q19: In the first 15 minutes of a
Q20: Which statement about the structure of skeletal
Q21: Which statement about the endoskeletons of vertebrates
Q23: Fast-twitch fibers<br>A) are also called white muscle.<br>B)
Q25: Wild turkeys have breast muscles that are
Q26: Migrating birds often cross the Gulf of
Q27: Which process occurs during shortening of a
Q28: Which statement about smooth muscle is true?<br>A)
Q29: Calcium ions must bind to which protein
Q116: The glycolytic system by which muscles obtain