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It would depend on the type of tissue. But if you are interested in any tissue, then have a look at this BioNumbers entry. It says that there are 100000 insulin receptors per cell in rat adipose tissue. Divide it by the surface area of the cell and you'll get the density. Cell dimensions can also be found in BioNumbers


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In the biological context, membrane-partitioning is usually referring to the stage in which the transmembrane-destined region of a protein moves from interacting with the water, to interact with the interface of the membrane. In the diagram below showing a four step thermodynamic cycle, the partitioning free energy can be referred to as as ΔGwiu in terms ...


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Membrane potential (ΔµH) AKA the membrane electrochemical potential, may be thought of as the voltage that is experienced across the membrane, analogous to a battery. The extracellular side is typically positive, while the cytoplasmic side is typically negative. This induces the electrochemical gradient with ions having a preference for a particular side ...


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Why Bilayer and not a Monolayer Lipid monolayer vesicles are possible as you mentioned (for example micelles). However, you have to understand that the cellular interior i.e. the cytoplasm, is aqueous and therefore a monolayer vesicle like micelles would not work. In micelles, the two compartments - interior and exterior, have to be of opposite nature for ...


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Oxigen goes from the alveolar's lumen to the cytoplasm of the erythrocyte, and that's 5 membranes: the "top" of the alveolar epithelial cell the "bottom" of such cell the "top" of the endothelial cell (capillary) the "bottom" of such cell the erythrocyte membrane You got all the cells right, but your only problem was this: oxygen diffuses through the ...


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I agree with @Maximilian that the phrase you quote is unclear, and we can't understand if it's talking about the number of cell walls of about the presence of cell walls: Most bacteria have at least 1 cell wall, meaning that some bacteria can have more than 1 This is wrong, as @Maximilian explained. But this: Most bacteria have a cell wall, meaning ...


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The phrase you quote is a little unclear, but in looking at the page you link to I believe that @Ashafix was referring to Gram-positive (one cell membrane) and Gram-negative bacteria (two cell membranes). Each type has only one cell WALL, which refers to the structural peptidoglycan layer, which is between the two membranes in gram-negative bacteria, and ...


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What should be the correct reason for bilayer arrangement? I'll answer your second question first, but there is an almost identical question on this site already: Why do cells have a bilayer? There is water on the extracellular and intracellular side of the membrane. What's actually happening at a molecular dynamics level is the self-association of the ...


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Your answers are correct, but there are more to consider: Nucleus is odd because it's the only one not directly involved in cell metabolism and has nothing to do with endosymbionts. Most cells also only have one nucleus but multiple mitochondria and chloroplasts - and multiple grana per chloroplast. Granum is odd because it's neither a eukaryotic cell ...


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I think it should be grana.. Reasons- 1. It is not a cell organelle 2. It is not having double membrane 3. It does not have its own dna or ribosomes...


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First question: B. The net gain of ATP in Photosynthesis is 0, so it cannot be A. C & D are obviously not true. Second question: B. D is not true, C is not true (it is actually the opposite- Chloroplasts absorb all BUT green, so only green would be bad). Like another commentator said, the level of CO2 only aids the rate to a point, at which the rise is ...


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I would say Nucleus is the odd one out. Chloroplast (which have Grana in them) and Mitochondria are involved in the process of creating/breaking down energy, whereas the Nucleus is, so to speak, the blue-prints of the cell. To summarize: Chloroplast is involved in Photosynthesis to create energy Grana are in the Chloroplast, which is involved in ...



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