The Sliding filament theory 0.0 / 5 ? BiologyCellular processes and structureDNA, genetics and evolutionA2/A-levelWJEC Created by: francesca_321Created on: 01-02-16 20:35 What inside the muscle fibre? numerous myofibrils 1 of 16 What are they called? sacromeres 2 of 16 What two type of proteins made of? actin and thicker myosin 3 of 16 What two other protein molecules is actin associated with? tropomysin and tropnin 4 of 16 What brings about the movement of actin? the change in orientation of the myosin heads 5 of 16 What does the myosin head attach to? the actin 6 of 16 What dips forward? the myosin head 7 of 16 What starts the sliding filament theory? myosin binding sites are blocked bytropomyosin, 8 of 16 What can't bind? myosin head 9 of 16 What ion binds to troponin? Calcium ions 10 of 16 What does this cause to move? troponin and tropomyosin 11 of 16 What does this expose? myosin binding sites 12 of 16 What is released? AdP and Pi released 13 of 16 What binds? ATP 14 of 16 What does Atpase cause? ATP hydrolysis 15 of 16 What position does the myosin head return to? an upright position 16 of 16
Comments
No comments have yet been made