Biology 9700 · AS & A Level · Control and coordination in mammals

Control and coordination in mammals — practice question

Fig. 4.1 presents a transmission electron micrograph of a cross-section through striated muscle.
(a)[4]

Complete Table 4.1 using the letters A, B or C to indicate where the proteins associated with striated muscle structure are found. Each letter may be used once, more than once, or not at all.

(b)[5]

Explain the role of ATP in striated muscle contraction.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: myosin together with actin at location B

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