Calcium is important in skeletal muscle contraction because it :- (1) binds to troponin to remove the masking of active sites on actin for myosin. (2) activates the myosin ATPase by binding to ... filament. (4) prevents the formation of bonds between the myosin cross bridges and the actin filament. Answer : (1) binds to troponin to remove the masking of active sites on actin for myosin....
The phase of contraction of a muscle occurs when: a) tropomyosin binds and releases actin b) myosin binds and releases actin c) actin binds and releases myosin d) none of the above Answer : ANSWER: B -- MYOSIN BINDS AND RELEASES ACTIN...
The major fibrous proteins are: a) peptone and edestin b) glutelin and leucine c) valine and lysine d) myosin and actin Answer : ANSWER: D -- Myosin and Actin...
The myofilaments of muscles consist primarily of two proteins. These two proteins are called: a) actin and myosin b) progesterone and testosterone c) progesterone and estrogen Answer : ANSWER: A -- ACTIN AND MYOSIN...
The organic portion of bone consists of which one of the following proteins. a) fibrin b) collagen c) actin d) myosin Answer : ANSWER: B -- COLLAGEN...
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