BIOS 252 Final Exam Practice test Questions and Answers
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Course
2024/2025
Institution
2024/2025
BIOS 252 Final Exam Practice test
Questions and Answers
Which of the following is a recognized function of skeletal muscle?
1) A) guard body entrances and exits
B) maintain posture
C) maintain body temperature
D) produce movement
E) all of the above - Ans:-E
Nerves and blood vessels that se...
When a skeletal muscle fiber contracts, A) the zones of overlap get larger.
B) the H bands and I bands get smaller.
C) the Z lines get closer together. D) the width of the A band remains constant.
E) all of the above - Ans:✔✔-E
The following is a list of the events that occur during a muscle contraction. 1. Myosin cross-bridges bind
to the actin.
2. The free myosin head splits ATP.
3. Calcium ion is released from the sarcoplasmic reticulum.
4. The myosin head pivots toward the center of the sarcomere.
5. Calcium ion binds to troponin. 6. The myosin head binds an ATP molecule and detaches from the actin.
The correct sequence of these events is
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