Sliding filament model

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  • Created by: Anna
  • Created on: 25-05-13 12:30

1. What is the thick filament made up of?

  • Actin with 1 head and 2 tails
  • Actin with 2 heads and a tail
  • Myosin with 2 heads and a tail
  • Myosin with 1 head and 2 tails
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2. Where are calcium ions moved back to?

  • Vesicles
  • The sarcoplasmic reticulum
  • The synaptic cleft
  • The sarcoplasm

3. What region is the thick filament found in?

  • Z-line
  • A-band
  • H-band
  • I-zone

4. What is the thin filament made up of?

  • An actin strand
  • Two myosin strands with globular proteins
  • Two actin strands with globular proteins
  • Two actin strands with 3 polypeptides

5. What do the calcium ions bind with?

  • The troponin head
  • The tropomyosin's polypeptide
  • The troponin's polypeptide
  • The tropomyosin head
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