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Calcium ions are actively imported from the cytoplasm into the Endoplasmic reticulum

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1y ago

The increased concentration of Ca in the endoplasmic reticulum (ER) can be explained by the presence of specific Ca-ATPases pumps that actively transport Ca ions into the ER. These pumps work against the concentration gradient, using energy from ATP hydrolysis to pump Ca ions into the ER lumen, thereby increasing the concentration of Ca in the ER. This high calcium concentration in the ER is important for various cellular processes, such as protein folding and signaling.

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Q: What explains the increased concentration of Ca in the ER?
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What explains the increased concentration of in the ER?

The endoplasmic reticulum (ER) contains a high concentration of Ca2+ ions due to the presence of specialized pumps (such as SERCA) that actively transport Ca2+ into the ER from the cytoplasm. This accumulation of Ca2+ within the ER is crucial for various cellular functions, including protein folding and lipid synthesis.


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Cause release of calcium in endoplasmic reticulum?

IP3. Inositol triphosphate. Cut from the membrane by something I can not remember ( a G protein action ) and then this lipid as part of this signal trasduction pathway docks on the ER and Ca(2+) is released to preform the cellular response.


What cell part is made up of proteins and is responsible for moving things around in the cell?

The endoplasmic reticulum has two parts to it. The Rough ER has many Ribosomes lining its inside and creates proteins for the cell which are either used or sent to the Golgi Apparatus for transportation. Proteins that are created in the Rough ER have a higher chance of being secreted. The smooth ER's job is to remove toxins from the system, which is why a high concentration of Smooth ER is found in the liver.


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What is ER in cells?

ER (endoplasmic reticulum) is a network of membranous tubes and sacs found in eukaryotic cells. It plays a key role in protein and lipid synthesis, as well as in processing and modifying newly synthesized proteins. There are two types of ER: rough ER, which has ribosomes on its surface and is involved in protein synthesis, and smooth ER, which lacks ribosomes and is involved in lipid metabolism and detoxification.


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Cell stimulated to increase steroid production will have abundant?

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