1.        a. The thick string is composed of what tinge?
myosin
b. Â Â Â Â Â Â Â Flexing the head of this iota provides what is known as the
           muscle contration (power stroke)
2.        The trail bridge (myosin head) contains dressing identifys for what two molecules?
a. adenosine triphosphate
b. Actin
3.        trey molecules make up the thin filament.
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 commit for it to disconnect with
actin? ATP
5.        Hydrolysis of the molecule in question 4 returns the myosin molecule to the
           high energy confirmation.
6.        Binding of the cross bridges consecutive prevents slipping back toward resting position
of the thin filament.
7.        Name three roles for ATP in the contraction of muscle.
a. energizing the power stroke of the myosin cross bridge
b.
disconnecting the myosin head from the binding site on actin at the last of a power stroke
c. actively transporting calcium ions into the sarcoplasmic reticulum.
8.        What molecule is machine-accessible to the Z line? Actin
9.        Which of the following shorten during contraction? (may be more than one)
a. Thin filament                Â
b. Sarcomere              Â
c. H zone        Â
d. dense filament
10.       a. What is the name of the condition in which muscles become rigid after
           demolition? Rigor mortis
b. What is this condition due to?
It is due to the depletion of ATP. Without ATP, the calcium ion pumps no longer function. The exposed actin binding sites...If you want to get a full essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment