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What does the smooth endoplasmic reticulum remind you of?
The smooth endoplasmic reticulum (SER) reminds me of a vast network of highways, where various cellular processes take place. Just as highways facilitate the transport of goods and services, the SER is involved in lipid synthesis, detoxification, and calcium ion storage. Its smooth, tubular structure contrasts with the rough endoplasmic reticulum, which is studded with ribosomes, similar to how some highways may have bustling service areas while others remain quiet and streamlined.
What does Endoplasmic Reticulum need to live?
The endoplasmic reticulum is a vital organelle within a cell that requires nutrients, energy, and proper cellular conditions to function and survive. It relies on a constant supply of proteins, lipids, and other molecules that it helps to synthesize and transport within the cell. Additionally, it needs a stable environment with the right pH, temperature, and ion concentrations to carry out its functions effectively.
What channel number is ion on xfinity?
The channel number for ION Television on Xfinity can vary by location. Generally, it is often found in the range of 50 to 100. To find the exact channel number for your area, you can check the Xfinity channel lineup online or use the Xfinity TV guide.
Difference between ion pump and channel?
An ion pump actively transports ions across the cell membrane against their concentration gradient using ATP energy, while an ion channel is a passive protein that allows ions to move down their concentration gradient in or out of the cell membrane. Ion pumps are selective in the ions they transport, while ion channels are typically nonspecific or selective for specific ions.
A “ligand-gated” ion channel is one that will open in response to:?
A specific molecule binding to it
What part of the cell stores calcium ion?
the smooth endoplasmic reticulum
Does the smooth er transport proteins?
The smooth endoplasmic reticulum (SER) does not have ribosomes attached to it and only makes lipids. The rough endoplasmic reticulum (RER), on the other hand, does have ribosomes attached to it. The RER makes lipids as well but also helps transport the proteins made by the ribosomes attached to it.
What does the soft endoplasmic reticulum do?
Smooth Endoplasmic reticulum creates steroids and stores ions. The ion storage is important to keep the correct level of nutrients within the cell. Ion storage is like our fat cells holding on to sugars for when you need them.
What are the general functions of endoplasmic reticulum?
Two general functions are the modification and folding of proteins in the lumen of the rough ER and the manufacture of lipids in the smooth ER. Also has the important job of calcium ion storage as these ions are important second messengers in cell signaling.
What organelle releases calcium?
The endoplasmic reticulum has a store of calcium ions, Ca 2+, that it releases as second messengers in signalling transduction. Also the scarcoplasmic reticulum releases this ion in the process of sarcomere contraction.
What is the function for the smooth endoplasmic reticulum?
The smooth ER is a system of internal membrane inside the cell which move proteins and other substance through the cell (works as a highway system). The rough ER is basically smooth ER with ribosomes stuck to it. The ER is made of lipid bi-layer, just like the cell membrane.
What is immediate source of calcium ion for muscle fiber?
The immediate source of calcium ion for muscle fiber is the sarcoplasmic reticulum, a specialized organelle within muscle cells that stores and releases calcium ions in response to nerve signals. When a muscle cell is stimulated, calcium ions are rapidly released from the sarcoplasmic reticulum into the cytoplasm, triggering muscle contraction.
Where is the smooth er located in a cell?
The smooth e.r. (endoplasmic reticulum) is located in the cytoplasm of eukaryotic cells. Like the rough e.r., the smooth e.r. is concerned with making proteins. Unlike the rough e.r., the smooth e.r has no ribosomes attached to it. Hope this helps. The whole article is on Wikipedia, in case this didn't help (see related link).
Is the concentration of calcium ion greater in the sarcoplasmic reticulum or sarcoplasm of a resting muscle?
The concentration of calcium ion is greater in the sarcoplasmic reticulum compared to the sarcoplasm of a resting muscle. This is because the sarcoplasmic reticulum stores and releases calcium ions during muscle contraction.
What channel is ion on direct tv?
ION is on channels 216 and 217. It is available with our 120 programming packages and above.
Whats the endoplasmic reticulum?
The endoplasmic reticulum (ER) is an organelle found in eukaryotic cells that plays a key role in protein and lipid synthesis, as well as calcium ion storage and release. It is composed of a network of membranes that form interconnected tubules and flattened sacs. There are two types of ER: rough ER, which has ribosomes attached to its surface and is involved in protein synthesis, and smooth ER, which lacks ribosomes and is involved in lipid metabolism and detoxification.
Is ion channel on Time Warner cable so Calif area?
YES! Time Warner Cable has Ion Channel. Regular is channel#30 and in HD it is channel#410
