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In the sarcoplasmic reticulum (smooth er).
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∙ 12y ago
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∙ 13y agoThey are stored in the smooth endoplasmic reticulum
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∙ 12y agoSarcoplasmic reticulum
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∙ 12y agothe smooth endoplasmic reticulum
Wiki User
∙ 13y agothe smooth endoplasmic reticulum
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∙ 13y agoSmooth ER
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When a muscle cell responds to a stimulus calcium is released from the?
Sarcoplasmic reticulum stores and releases calcium ions within striated skeletal muscles.
What are the ions like in calcium bromide?
Calcium ions have a charge of plus two, and bromine ions have a charge of minus one.
Is calcium chloride a sulfite?
No, calcium chloride is CaCl2 containing calcium ions (Ca2+) and chloride ions (Cl-). A sulfite must contain sulfite ions (SO32-)
In what ratio do calcium and hydroxide ions combine?
One Calcium ion to 2 hydroxide ions.
What are the ions for calcium fluoride?
The individual ions for calcium fluoride have the formulas Ca+2 and F-1 respectively. That means that in any sample of calcium fluoride, there must be twice as many of the fluoride ions.
Which substance is stored in the muscle's endoplasmic reticulum and then released when a nerve signal stimulates a muscle fiber?
Calcium ions
In certain kinds of muscle cells calcium ions are stored?
Smooth ER
Where are the calcium ions stored in the muscle cells?
terminal cisternae of the sarcoplasmic reticulum
In relaxed muscle fiber which structure stores calcium?
It is the Terminal Cisternae- Sac like regions of the sarcoplasmic reticulum that serve as specialized resevoirs of calcium ions
Where are Ca2 plus ions stored?
Ca 2+ ( calcium ions ) are stored in the smooth endoplasmic reticulum.
Where is calcium stored in the muscle cell?
The sarcoplasmic reticulum is known for its storage of calcium ions in muscle cells.
What chemical ion is responsible for initiating the contraction of a muscle fiber?
Calcium ions bind to the thin filament ( actin ), turn it and expose the binding site to the thick filament (myosin ).
What Steps in muscle contraction require calcium ions?
Calcium ions bind to troponin, changing troponin's shape
Which protein inhibits skeletal muscle contraction and what ion removes the inhibition?
Tropomyosin; calcium ions
Where is calcium stored in the muscle?
The sarcoplasmic reticulum is known for its storage of calcium ions in muscle cells.
What ions serve as a trigger for muscle contractions by removing the inhibition of the troponin molecule?
Calcium ions
What does calcium ions that act as a second messengers stored in?
endoplasmic reticulum
