- A Motor neuron + muscle fibres
- B Motor neuron + fascia
- C Motor neuron + muscle
- D Motor neuron + muscle bundle
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Answer:
B
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The thick filaments in muscle cells are composed of individual monomeric proteins known as meromyosins. Each meromyosin consists of a globular head with a short arm and a tail. The globular head of the meromyosin contains the enzyme ATPase, which hydrolyzes ATP to provide the energy required for muscle contraction.
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