Question

4. Sarcomere is the contractile unit of muscle cells. The image below represents the typical organization of sarcomere in the relaxing skeletal muscle. Z disc M line Z disc H zone I band A band I band a. Which region defined the thick and thin filaments, respectively? (2 marks) b. What are the major components in thick and thin filaments, respectively? (2 marks) c. During the muscle contraction, how do these regions change in length? (4 marks) d. Despite the similarity of sarcomeres, compare the differences of cellular organization between skeletal muscle cell and cardiac muscle cell. (2 marks)

          4. Sarcomere is the contractile unit of muscle cells. The image below represents the typical organization of sarcomere in the relaxing skeletal muscle.
Z disc
M line
Z disc
H zone
I band
A band
I band
a. Which region defined the thick and thin filaments, respectively? (2 marks)
b. What are the major components in thick and thin filaments, respectively? (2 marks)
c. During the muscle contraction, how do these regions change in length? (4 marks)
d. Despite the similarity of sarcomeres, compare the differences of cellular organization between skeletal muscle cell and cardiac muscle cell. (2 marks)

4. Sarcomere is the contractile unit of muscle cells. The image below represents the typical organization of sarcomere in the relaxing skeletal muscle.
Z disc
M line
Z disc
H zone
I band
A band
I band
a. Which region defined the thick and thin filaments, respectively? (2 marks)
b. What are the major components in thick and thin filaments, respectively? (2 marks)
c. During the muscle contraction, how do these regions change in length? (4 marks)
d. Despite the similarity of sarcomeres, compare the differences of cellular organization between skeletal muscle cell and cardiac muscle cell. (2 marks)

Added by Alan H.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Madhur L

06/13/2022

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The H zone contains both thick and thin filaments where they overlap. ** Show more…

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Sarcomere is the contractile unit of muscle cells. The image below represents the typical organization of sarcomere in the relaxing skeletal muscle. Z disc M line Z disc H zone I band A band I band a. Which region defined the thick and thin filaments, respectively? (2 marks) b. What are the major components in thick and thin filaments, respectively? (2 marks) c. During the muscle contraction, how do these regions change in length? (4 marks) d. Despite the similarity of sarcomeres, compare the differences of cellular organization between skeletal muscle cell and cardiac muscle cell. (2 marks)