muscledropboxassignment - TheMuscularSystem: 1.a. MYOSIN b....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
The Muscular System: Sliding Filament Theory 1. a. The thick filament is composed of what molecule?  MYOSIN b.  Flexing the head of this molecule provides what is known as the            “POWER STROKE” FOR MUSCLE CONTRACTION 2. The cross bridge (myosin head) contains binding sites for what two  molecules? a.ATP b.actin 3. Three molecules make up the thin filament.  Actin, tropomyosin, and  troponin a. Which molecule has a binding site for myosin cross bridges?  actin b. Which molecule covers this binding site?  tropomyosin c. Which molecule has a binding site for calcium ions?  troponin 4. What molecule must bind to the cross bridge in order for it to disconnect  with  actin?   atp
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5. Hydrolysis of the molecule in question 4   returns the myosin molecule to the  original confirmation. 6. Binding of the cross bridges sequentially prevents  sliding of the thin filament. 7. Name three roles for ATP in the contraction of muscle. a. 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/13/2011 for the course BIO 1010 taught by Professor Rodp during the Spring '11 term at Volunteer State Community College.

Page1 / 5

muscledropboxassignment - TheMuscularSystem: 1.a. MYOSIN b....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online