how big is the endoplasmic reticulum of a cell?
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Hmm. what an odd question.Keilbasa mentions a serious problem, ie that the endoplasmic retiuculm varies by orders of magnitude between different cells.\n\nBut there is an even more fundamental problme that makes the question unanswerable: the ER is an interlinked assembly channels, pockets and invaginations. It's is very literally like a road network. \n\nYour question is exactly like asking "How big is the street network of NY City?". It's almost menaingless. The ER has a length (several metres in the average cell) and it has a volume (no idea off the top of my head) but those are the only meaningful answers for how 'big' it is. It's not like we can say it's 3cm by 3cm or twice the size of the nucleus or somehting. It isn't like that.
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Nuclear membrane is formed by a series of  flattened cistenae aligned sideways with gaps called nuclear pores. There are pore complexes guarding the nuclear pores.The flattened cisternae are smooth- surfaced endoplasmic reticulum. It is a typical biological membrane of lipo-protein.\nPlasma membrane is glyco-lipoprotein complex.The overcoat of the plasma membrane is made by the Golgi Complex. It is a complex of carbohydrate side chains along with proteins.The overcoat lies over the bilayer of lipid through with proteins lie across: some  projected,  others buried in the bilayer of lipid. Plasma membrane contains several enzymes and channels connected with transport of ions and small molecular weight substances.
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Answer = A\n\nA larger cell (answer B) can hold more charged particles, but a small cell with 5 charged particles will have the same potential as a large cell with 5 charged particles!\n\n(C) and (D) relate to how quickly the cell can re-creat the resting membrane potential once, say, an action potential has passed through the nerve.
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I would guess: Nucleus, Mitochondria, Peroxisomes, Endoplasmic reticulum and Golgi
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The cytoplasm containing the other cell parts.
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i'd say thats the cytoplasm of the cell
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The answer is D.  Protein synthesis takes place along the endoplasmic reticulum.  The synthesized proteins move to the golgi apparatus, and are then packaged in vesicles to be transported out of the cell (those that are destined to leave the cell).  In your example, the radiolabeled proteins are destined to leave the cell, so they would need to go to the cell membrane in order to exit the cell.  Going to the nucleus would be going the wrong direction.\n\nhttp://users.rcn.com/jkimball.ma.ultranet/BiologyPages/G/Golgi.html
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All organelle sizes in micrometers are available at http://teachersnetwork.org/ntol/lessons/plantcell/index.htm \n\n( scroll down to the table near the end )
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Basic cell biology:\n\nEndoplasmic reticulum - an organelle found in all eukaryotic cells that modifies proteins, makes macromolecules, and transfers substances throughout the cell.
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intermembrane space??\nhttp://en.wikipedia.org/wiki/Chloroplast_membrane
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Nucleus contains the genetic material and is where mRNA is produces for later production of protein, which occurs at the rough endoplasmic reticulum.  THe mitochondria carries out respiration, while the chloroplast does the same using light. There are a number of others, of course, but that'll get you started.
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Here is a list of all the parts of an animal cell:\n1.  Plasma Membrane\n2.  Nucleus\n3.  Rough Endoplasmic Reticulum\n4.  Smooth Endoplasmic Reticulum\n5.  Mitochondria\n6.  Ribosomes\n7.  Golgi Apparatus\n8.  Lysosome\n9.  Microtubules\n10. Microfilaments\n11. Intermediate filaments\n12. Microvilli\n13. Peroxisome\n14. Centrosome\n15. Flagellum\n16. Chromatin\n17. Nucleolus\n18. Nuclear Envelope
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endoplasmic reticulum is a system of membranes forming a network of connecting sacs and canals that wind basck and forth through a cell's cytoplasm. rough er is where ribosomes drop their protein. smooth er manufatures fats, carbs, and protein. smooth er makes new membrane
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1) nucleus\n2) vacoule\n3) cell membrane\n4) cytoplasm\n5) chromosomes
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mitochondria, golgi apparatus, endoplasmic reticulum (smooth or rough)
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reticulum, that's how its spelled...and it's the network of transportation through a cell
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To be more precise, ribosome is in the cytoplasm which is outside the nucleus.