In a cell,several proteins move constantly in and out of the central orgenelle,discuss the signalling pathway which facilitates this essential transport.
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A: According to guidelines we have to answer the first question only. so please kindly post the…
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A: Sugar transported in symport with Na+ : Glucose
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A: Answer is Specificity.
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Q: ________________ is the name of the process by which glucose moves across a plasma membrane.
A: The name of the process is Facilated Diffusion.
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Q: A
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A: Ans : K+ ions are not second messenger. option d is the right answer.
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A: ABC transporters belongs to the ATP binding cassette transporters superfamily.
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A: This question is about movement of glucose.
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Q: Phagocytosis is a good example for bulk transport اختر واحدأ las
A: TRUE
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Q: Asap explain well
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Q: Which Stimulation of a Cell Leads to an Increase in Cytosolic Ca21 Concentration
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A: Hello, thank you for your question.
Q: ospholipase C : IP3-DAG pathway,with diagram
A:
Q: the sodium channel exchanger NCX transports sodium into and calcium out of cardiac muscle cells.…
A: Active Transport across a lipid bilayer takes place when we have to move an ion against its…
Q: Why glucose does not cross the cell membrane through open channels?
A: As we know glucose is a polar molecule composed of carbon connected with H and OH groups which makes…
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- "Transporters saturate at high concentrations of the transported molecule when all their binding sites are occupied; channels, on the other hand, do not bind the ions they transport and thus the flux of ions through a channel does not saturate." is true or false.Glucose (C6H12O6) exhibits which of the following membrane transport movements? it is able to cross the membrane by facilitated diffusion, because it is small, polar, and organic it is not able to cross the membrane by passive transport, because it is big, polar, and inorganic it is able cross the membrane by simple diffusion, because it is small, nonpolar, and inorganic it is not able to cross the membrane by active transport, because it is big, polar, and inorganic it is able to cross the membrane by active transport, because it is big, nonpolar, and organic 10. A red blood cell that displays a biconcave disc shape must be in which of the following solutions? hypertonic solution distilled water isotonic solution ocean water hypotonic solutionAldosterone is a steroid hormone that freely enters the target cells to act within the cell. Epinephrine is a polar monoamine (amino acid) hormone that interacts with receptors on the cell's surface. What accounts for this difference? [Select any/all that apply.] Steroids are charged and hydrophilic, so aldosterone passed through a transport protein. Steroids are hydrophobic so aldosterone passed through the membrane by simple diffusion. Epinepherine (amino acid) hormone is hydrophilic, so it cannot diffuse through the phospholipid bilayer. Epinepherine (amino acid) hormone could diffuse through the phospholipid bilayer but it is attracted to the receptor protein.
- Which of the following regarding GPCR's is FALSE? GPCR ligand binding stimulates phosphorylation of the heterotrimeric G protein GPCR's have seven transmembrane domains The alpha subunit of the heterotrimeric G protein is active in its GTP bound state The beta-gamma subunit of the heterotrimeric G protein performs signaling functionsDescribe signaling pathways involving intracellular receptors. Then, explain why a ligand would use an intracellular receptor as opposed to a transmembrane receptWhich of the following describe active transport or is an example of act transport of a substance across a membrane? Choose all correct answer Glucose transport into intestinal epithelial cells Glucose transport into muscle cells Na* ion pumping out and K* ion pumping into the cell Transport requires a mediator Requires input of energy for transport Movement of ligand against the concentration gradient
- What would happen in each of the following cases where something related to intracellular transport is altered? Assume in each case that the protein involved is a soluble protein, not a membrane protein. State where each protein would be located and explain each of your answers. You add a signal sequence (for the Golgi) to the N-terminal end of a normally cytosolic protein. You change the hydrophobic amino acids in an ER signal sequence into other, hydrophobic, amino acids.SNAT2 (a membrane protein) determines the cell’s content of most amino acids. It acts as a symport (or co-transporter) of Na+ and amino acids. On the outside of the cell, the Na+ concentration is higher than the inside. The amino acid concentration on the inside of the cell is higher than the outside. When both Na+ and an amino acid bind to the SNAT2 membrane channel on the outside of the cell, there is a conformational change allowing the energy from electrochemical gradient of Na+ for the transport of the amino acid into the cell. a. Draw this scenario and label your representations of Na+, amino acids, SNAT2, and the membrane. b. What kind of transport is this, simple diffusion, facilitated, diffusion, active transport, 1o active transport, or 2o active transport? Explain your choice. ThanksMatch the transport process to the correct description or example. Primary Active Transport is: Group of answer choices transport of glucose out of cell, with its concentration gradient transport of sodium out of a neuron using the sodium potassium pump breaking of a covalent bond to create new molecules transport of large macromolecules into a cell transport of signal molecules out of an endocrine cell transport of a steroid hormone into a cell transport of glucose into a cell, against its concentration gradient import of an entire bacterium into a white blood cell
- Briefly explain how integral membrane proteins can participate in intracellular signaling.The parasite Trypanosoma brucei, which causes sleeping sickness, uses proline as an energy source during one stage of its life cycle. The properties of this proline-specific transporter were investigated in a series of experiments. L-hydroxyproline inhibited the transporter. D-proline did not inhibit the transporter. Na*, K*, and pH changes did not affect the transporter. Which of the following is a reasonable hypothesis based on this data? The proline transporter is a Na+-K+ ion pump. The proline transporter cleaves amide bonds. The proline transporter is stereospecific. The proline transporter requires metal-ion catalysis. The proline transporter has an essential ionizable histidine residue,Proteins are transported from the cytoplasm into the nucleus as well as mitochondria/chloroplasts. There is also a transport that goes via vesicles. Describe these three different transport systems and explain how the cell knows which protein will end up in the organal.