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Troponin
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Which molecule covers the binding site?
Tropomysin
Sliding filament model which proteinS have a calcium binding site?
The actin filaments have a Ca+2 binding site.
One binding site on a ribosome holds an mRNA molecule and the other two binding?
tRNA molecules.
Why is calcium needed for muscle contraction?
Yes, calcium is necessary for the release of neurotransmitters that cause a muscle to initiate a contraction. Calcium is also needed to bind to the troponin-tropomyosin complex causing it to change position so the myosin head can attach to the actin molecule which results in contraction.
Which is a correct association of protein types?
Receptor proteins- have a binding site for a specific molecule
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.
Which molecule covers the binding site?
Tropomysin
Sliding filament model which proteinS have a calcium binding site?
The actin filaments have a Ca+2 binding site.
What is a binding site?
The binding site is where a specific binding molecule and a specific receptor protein can combine. This combination can only occur at the binding site. All in the 9th grade text book
The site of calcium regulation in the smooth muscle cell is?
Calmodulin (a cytoplasmic calcium binding protein)
One binding site on a ribosome holds an mRNA molecule and the other two binding?
tRNA molecules.
What unlocks the active site of an actin molecule?
calcium
Why is calcium needed for muscle contraction?
Yes, calcium is necessary for the release of neurotransmitters that cause a muscle to initiate a contraction. Calcium is also needed to bind to the troponin-tropomyosin complex causing it to change position so the myosin head can attach to the actin molecule which results in contraction.
Which is a correct association of protein types?
Receptor proteins- have a binding site for a specific molecule
What would be likely to raise the concentration of calcium ions in a cell?
Blocking ATP binding sites. By blocking ATP binding site it would stop the active transport which would result in a higher calcium concentration in the cytoplasm.
What molecule has a binding site for myosin heads?
Myosin heads bind to the actin binding site, and also has a part where ATP binds
The particular region of an enzyme molecule that combines with the substrate it acts upon is called what?
The area where a molecule other than substrate can attach is called the allosteric site.
