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Is the concentration of calcium ion greater in the sarcoplasmic reticulum or sarcoplasm of a resting muscle?
Wiki User
∙ 14y ago
The Ca2+ ion concentration of the sarcoplasmic reticulum will be greater in a resting muscle
Wiki User
∙ 14y ago
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What does sarcoplasmic reticulum do?
The Sarcoplasmic Retiulum releases calcium ions that will cause troponin/tropomyosin complex to move. This exposes the binding sites on actin and allows the cross-bridges of myosin to bind to the actin binding sites.
When a nerve signals a muscle to contract where is calcium released?
calcium released by sarcoplasmic reticulum.
What structure lets calcium ions enter cardiac muscle cells?
sarcoplasmic reticulum
What is an elaborate network of membranes in skeletal muscle that functions in calcium storage?
sarcoplasmic reticulum
Normally stored in the terminal cisternae of the sarcoplasmic reticulum?
One major function of the sarcoplasmic reticulum is the regulate the intracellular levels of CA2+ for contractions and relaxation for muscles. Sarcoplasmic Reticulum is a storage organelle with calcium ion pumps on membrane and use ATP to fuel pumps to get calcium ion inside it's cell and holds it. When contraction of muscle is needed calcium ion is then dumped into cytoplasm to cause contraction.
Which structure actively pumps calcium ions out of the sarcoplasm to produce relaxation?
sarcoplasmic reticulum
What is the most important factor in decreasing intracellular concentration of calcium ion after contraction is?
active transport of calcium into the sarcoplasmic reticulum
Where is calcium stored in the muscle cell?
The sarcoplasmic reticulum is known for its storage of calcium ions in muscle cells.
What has the author Earl George Noble written?
Earl George Noble has written: 'Calcium uptake by sarcoplasmic reticulum isolated from rat heart and skeletal muscle following exercise' -- subject(s): Calcium, Calcium in the body, Exercise, Fatigue, Metabolism, Physiological aspects, Physiological aspects of Exercise, Physiology, Rats, Sarcoplasm, Sarcoplasmic reticulum
What are the Skeletal muscle cells that function in calcium storage?
in the sarcoplasmic reticulum of a muscle fiber/cell.
Where is calcium stored in the contractile cells?
Sarcoplasmic reticulum
What does sarcoplasmic reticulum do?
The Sarcoplasmic Retiulum releases calcium ions that will cause troponin/tropomyosin complex to move. This exposes the binding sites on actin and allows the cross-bridges of myosin to bind to the actin binding sites.
What is in the sarcoplasmic reticulum in muscle?
The sarcoplasmic reticulum is a special type of smooth endoplasmic reticulum. It releases calcium ions during muscle contraction and absorbs them during relaxation.
Which organelle contains calcium in muscle cells?
sarcoplasmic reticulum
When a muscle is relaxed calcium levels are high in?
sarcoplasmic reticulum
Which ion is stored in the sarcoplasmic reticulum?
Calcium (Ca+2)
Where are the calcium ions stored in a muscle fiber?
In the sarcoplasmic reticulum (smooth er).
