Muscles 0.0 / 5 ? BiologyMusclesA2/A-levelEdexcel Created by: Ellie HadleyCreated on: 15-01-14 17:36 What are the two proteins that make up muscle filaments? Actin and Myosin 1 of 10 What is tetanus? The muscles are fully contracted and go into paralysis 2 of 10 Where are calcium ions stored in muscle cells? Sarcoplasmic reticulum 3 of 10 What causes calcium ions to be released? Nerve impulse or action potential 4 of 10 What protein do calcium ions bind to? Troponin 5 of 10 What happens when calcium ions bind to troponin? Cause the tropomyosin to move away from the binding site 6 of 10 What happens when ATP binds to myosin? The myosin head is released from the actin 7 of 10 What is the enzyme needed to release energy from ATP? ATPase 8 of 10 What does myogenic mean? Muscle contracts without a nerve impulse 9 of 10 What are the differences between cardiac muscle and striated muscle? Cardiac is myogenic, do not tire easily and the cells are branched 10 of 10
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