TASK CARD: Book Summary
Muscle Contractions (pg. 116-119)
1. Draw a diagram of a sarcomere, showing the Z-Lines, A Band, H
Zone, I Band.
2. Explain why the H Zone looks lighter in color under a microscope
compared to the rest of the A Band. Why is the I Band lighter in
color compared to the rest of the sarcomere?
3. List the events that occur at the neuromuscular junction once
acetylcholine is released.
4. Describe how calcium ions control muscle contraction. Use the
molecules troponin and tropomyosin in your answer.
5. Explain the role of ATP in a muscle contraction.
TASK CARD: Book Summary
Muscle Contractions (pg. 116-119)
1. Draw a diagram of a sarcomere, showing the Z-Lines, A Band, H
Zone, I Band.
2. Explain why the H Zone looks lighter in color under a microscope
compared to the rest of the A Band. Why is the I Band lighter in
color compared to the rest of the sarcomere?
3. List the events that occur at the neuromuscular junction once
acetylcholine is released.
4. Describe how calcium ions control muscle contraction. Use the
molecules troponin and tropomyosin in your answer.
5. Explain the role of ATP in a muscle contraction.