2-4-10- Muscles Worksheet 9

2-4-10- Muscles Worksheet 9 - BSC2011 SI: 2/4/2010...

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BSC2011 SI: 2/4/2010 Worksheet 9 – Muscles Muscles ________________________________- single cell of a muscle; formed from the fusion of multiple cells causing it to have multiple nuclei; each is made up of multiple ________________________________. The 2 proteins in a myofibril that cause the striated (striped) appearance are: 1. ______________________________ - Thick filam ent - Anchored to the _______________________ of the s arcom ere - Describe what the filam ent looks like. 2. ______________________________ - Thin filam ent - Anchored to the _______________________ of the s arcom ere - Describe what the filam ent looks like. Muscular Contraction Draw and Label a Sarcom ere: Process of Muscle Contraction: 1. Myosin h e ad is in ___________________ e n ergy configuration with ATP bond ed to it 2. Ca 2+ is released and binds to ________________________ 3. ____________________ is cleaved causing the myosin head to change to the high energy configuration 4. A ___________________________ is formed between the myosin head and the actin
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2-4-10- Muscles Worksheet 9 - BSC2011 SI: 2/4/2010...

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