41. In the sarcomeres of skeletal muscle fibers, Ca2+ binds to a site on the (A) Z line. (B) myosin head. (C) thick filament. (D) thin filament. (E) neuromuscular junction.

41. In the sarcomeres of skeletal muscle fibers, Ca²⁺ binds to a site on the
(A) Z line.
(B) myosin head.
(C) thick filament.
(D) thin filament.
(E) neuromuscular junction.

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統計： A(0), B(3), C(4), D(25), E(2) #2308371

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Sean

B1 · 2020/05/30

#4016765

Thin filament 包含trop...

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47. What is the function of the polar bodies that are produced during oogenesis? (A) They are the mechanism that allows for the shedding of excess cytoplasm during the production of a haploid ovum. (B) They are the mechanism that allows for the shedding of excess nutrients during the production of a haploid ovum. (C) They are the mechanism that allows for the shedding of excess genetic material during the production of a haploid ovum. (D) They are the mechanism that allows for the shedding of excess mitochondria during the production of a haploid ovum. (E) They are the mechanism that allows for streamlining of the ovum so as to facilitate the penetration of an ovum by a sperm.

41. In the sarcomeres of skeletal muscle fibers, Ca²⁺ binds to a site on the
(A) Z line.
(B) myosin head.
(C) thick filament.
(D) thin filament.
(E) neuromuscular junction.

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