Describe structure of a cell membrane?
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1. lipoprotein sandwich\n2. receptor sites\n3. porus\n4. allows for diffusion\n5. allows for active and passive transport\n6. includes chlosterol
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Lots. Look up any school-level text on Biology. Conc on the following pts:\n1. Cell walls & membranes\n2. Plastids\n3. Vacuoles\n3. Centrioles\netc...
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Chloroplast not only have a membrane but they have two an outer and inner. I would go with ribosomes. Everything else has a cell membrane.\nWell this is if you consider the question to ask if the organelle itself has a membrane or the cell in which the orgnelle is contained has a cell membrane.\nI took Ap Bio 2 years ago but I believe the a plant cell also has a cell membrane even though it has a cell wall. The wall keeps them from bursting when they get too much water through osmosis. An animal cell would burst.
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The cell membrane is made up of a phospholipid bilayer, with a polar phophate head and a nonpolar lipid tail. The polar head is hydrophilic, the nonpolar tail is hydrophobic. A fat molecule will face toward the nonpolar, hydrophobic tail.
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plant cells have cell walls to give them structure. they would be more box shaped where as animal cells would be more rounded since they dont have a cell wall.
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all cells are composed of atoms in the nucleous.  All cells have a cell wall/cell membrane, cytoplasm/protoplasm.\ngolgi bodies\n\n\nYou can't have a cell without these things
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permeability of the cell membrane
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A post office of a cell.\n\nGolgi Apparatus actually sends information to different parts of the cell.
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Square, with its cell wall?\n\nIt's been a while since undergrad basic biology:-)
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Plant cell:\n1. has a cell wall outside plasma membrane.\n2. contains chloroplast\n3. has a single large vacuole\n4. has dictyosomes instead of mitochondria.\n\nAnimal cell:\n1. donot have a cell wall. cytoplasm is surrounded by plasma membrane.\n\n2. lack chloroplast\n3. vacuoles absent. if present they are smaller and more in number.\n4. contain mitochondria which are sites of energy production.
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Cell membrane, or phospholipid bi-layer.
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nucleus, cytoplasm and protoplasm ....
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a - inner membrane of mitochondrium\n\nb - membranes of endoplasmic reticulum, peroxisomes, lysosomes, vesicles and the inner membrane of the mitochondrion \n\nc - inner mitochondrial membrane\n\nd - inner mitochondrial membrane
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an electrical wave that travels down the membrane of a cell
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A cell membrane keeps separates the inside and outside of the cell.   It can also regulate what can enter the cell and what can't.
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A plasma membrane or cell membrane or plasmalemma structured bilayer of phospholipid and protein molecules.\nThe basic composition and structure of the plasma membrane is the same as that of the membranes that surround organelles and other subcellular compartments. The foundation is a phospholipid bilayer, and the membrane as a whole is often described as a fluid mosaic – a two-dimensional fluid of freely diffusing lipids, dotted or embedded with proteins, which may function as channels or transporters across the membrane, or as receptors. \n\n"The model was first proposed by S.J. Singer (1971) as a lipid protein model and extended to include the fluid character in a publication with G.L. Nicolson in "Science" (1972)."
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All are found in A) the cell membrane. \n\nThe cell membrane is made up of a phospholipid bi-layer that is dotted with proteins, markers, ion channels and receptors (which are also protein based).  The receptors/channels/markers all either identify the cell or allow things to pass in/out of it,  or allow things to attatch.  If they were anywhere else, it wouldn't make sense.\n\nSo your answer is A