Select the letter from the figure that most appropriately corresponds to the structure

I. A-band " " II. I-band
III. Sarcomere " " IV. H-zone
V. Myosin
VI. Actin, Troponin, Tropomyosin
VII. Z-line

Options

A. I - E, II - D, III - F, IV - A, V - B, VI - C, VII - G
B. I - E, II - D, III - F, IV - G, V - C, VI - A, VII - B
C. I - E, II - D, III - C, IV - G, V - B, VI - A, VII - F
D. I - E, II - D, III - F, IV - G, V - B, VI - C, VII – A

Answer

D

Explanation

A – band : Myosin thick and actin thin filament
I – band : Actin thin filament
Sarcomere : Contractile unit consist of dark and light band.
H – zone : Non overlapping region of Myosin, Actin, Troponin and Tropomyosin : Contractile and regulatory protein of thin filament.
Z – line : The line through which actin filament attach.