Topic 7 - Muscle power 0.0 / 5 ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelAQA Created by: Salma begum16Created on: 27-04-18 16:21 actin one of the two proteins that bring about contraction of muscle fibres 1 of 20 Antagonistic work in opposition to each other e.g biceps and triceps in the arm 2 of 20 ATP Energy currency - of most cells - consists of adenine. ribose and three phosphate groups 3 of 20 Calcium ions initiate the muscle contraction process by moving tropomyosin = ATP hydrolyse 4 of 20 Cardiac muscle muscle that makes up the wall of the heart produced heartbeat 5 of 20 Energy continuum the interaction of the three energy systems to provide energy to resynthesis ATP 6 of 20 Myofibrils thin filaments in muscles in bundles which brings about contraction 7 of 20 Myosin thicker of the two types of protein filaments that bring about contraction 8 of 20 Sarcoplasmic reticulum the specialised endoplasmic reticulum or cardiac muscle and skeletal muscle that functions especially as a storage and release area for calcium 9 of 20 Skeletal muscle muscle attached to the skeleton which brings about movement of bones 10 of 20 Slow skeletal muscle fibres muscle fibres that contract at about half the speed of fast skeletal muscle fibres 11 of 20 Smooth muscle muscle tissue in which the contractile fibrils are not highly orders, occurring in the gut and other internal organs ans not under voluntary control 12 of 20 Sarcomere a structural unit of a myofibril in striated muscles 13 of 20 Tropomyosin a thin protein that is involed in muscle contraction 14 of 20 Troposin a thin protein that is involed in muscle contraction 15 of 20 Fast skeletal muscle muscle fibres that can produce ATP very quickly via gylcolysis 16 of 20 neuromuscular junction junction between a nerve cell and muscle 17 of 20 creatine kinase an enzyme that catalyses the formation of cyclic AMP from ATP 18 of 20 t -tubule tubule running through the sacromere 19 of 20 Phosphocreatine energy- rich compound similar to ATP 20 of 20
Organisms respond to changes in their internal and external environments AQA A2 Biology PART 6 of 9 TOPICS: Skeletal muscles are stimulated to contract by nerves and act as effectors 5.0 / 5 based on 1 rating Teacher recommended
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