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Northern IrelandBiologyQuick questions
Physiology, Coordination and Control
Quick questions on Muscles and movement: sarcomere, sliding filament theory and the cross-bridge cycle - CCEA A-Level Biology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Name the ion that binds to troponin to start contraction. [1 mark]
What is q2?Show answer
Explain why the A band does not change width during contraction. [2 marks]
What is q3?Show answer
State two ways a muscle fibre can regenerate ATP quickly during intense exercise. [2 marks]
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