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globular heads
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∙ 10y ago
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Another word for acne?
blemishes and zits pimples black heads white heads
What name is given to the person who heads the embassy?
an anbassador
What is the idiom of to be constantly quarrelling with another person?
You might say you are "at odds" or "butting heads."
Another name for Sweetbriar?
Another name for the sweetbriar is eglantine.
What is another name for gullet?
It is an oesophagus
What is used to detach the myosin head?
ATP is used to detach myosin heads and move them back to position for another "power stroke."
What does the release of ADP and P from the myosin head cause?
The release of ADP and P from the myosin heads causes the myosin heads to change shape.
Binding of the myosin heads sequentially prevents what?
myosin crossbridge binding
What enzymes do myosin heads have?
ATPase
What are myosin heads?
Cross-bridge
What prevents actin myofilaments from sliding backward when a myosin head releases?
During contraction, there are always some myosin heads attached to the actin myofilament when other myosin heads are detaching.
What protein with heads that attach in cross bridging?
myosin
What does binding of the myosin heads sequentially prevent?
lengthening of the sacromere.
What is a temporary connection between actin and myosin heads?
Cross bridge
The binding of calcium to which molecule causes the myosin binding sites to be exposed?
Troponin binds to the Calcium ions to expose the actin to the myosin heads.
Where do myosin cross bridges attach during muscle contraction?
Myosin functions as an ATPase utilizing ATP to produce a molecular conformational change of part of the myosin and produces movement. Movement of the filaments over each other happens when the globular heads protruding from myosin filaments attach and interact with actin filaments to form crossbridges. The myosin heads tilt and drag along the actin filament a small distance (10-12 nm). The heads then release the actin filament and adopt their original conformation.
What is the Site of calcium regulation in smooth muscle tissue?
Calmodulin on myosin heads
