Where in a cell do most chemical reactions take place?
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That really depends on what kind of chemical reactions you are talking about.  If you want to know where metabolism takes place (breaking down sugars into energy), that would be in the mitochondria.  Synthesis of proteins occurs on the ribosomes.  Degradation of proteins occurs in the lysosomes.  Synthesis of DNA and RNA occurs in the nucleus.  Each part of the cell is involved in very important chemical reactions.
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It depends on the what type of cell the nucleus is located in.
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it allows for basic chemical reactions to take place.   same as animals but on a different level
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by means of the cell membrane\n\nthe red blood cells although are the standards cells are not like others\n\ncontains no compartilization like most eukaryotes
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usually at the centre. but sometimes lies in the periphal region if vacuole is too large(vacuole displaces the nucleus eg. in plant cell) \n    its size differs from cell to cell. however  its size is significantly larger than many other cell organelles like ribosome,lysosome, ER, etc but smaller than vacuole in plant cells
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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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molecules. i would say that the best and most simple answer to this question is on one the the most basic levels in life. Life is possible because of these reactions that take place everyday such as the main source of life, water. It is brought together by oxygen and hydrogen.
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Light reactions take place on the thykaloid membranes of the chloroplast. Light reaction requires light and water, and produces ATP and Oxygen. Dark reactions take place in the stroma (fluid that fills the chloroplast). It uses the ATP produced in light reactions to make glucose.
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Most of the cell's metabolic activities - that is, the sum of all the biochemical reactions that underlie life - occur in the cell cytoplasm.
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From respiration: Here, glucose molecules in the cell are broken down; the molecules have strong bond between them and so when they are broken, energy is provided(by mitochondria) and when new molecules are formed, energy is released, which the cell uses for various processes.\n\nFrom protein synthesis: It occurs on the ribosomes in the cytoplasm, and aminoacids are combined to form proteins and this releases energy.\n\nFrom ATP(adenosine tri-phosphate): The ATP molecule is a packet of energy which stores the energy released during any process going on in the cell and then releases the energy as and when required by the cell.
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in the cytoplasm of the cells
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nucleus, cytoplasm and protoplasm ....
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About the only thing in the nucleus of a cell that is NOT an organic compound is salt.  And it has an extremely small concentration.\n\nThe important compounds in a cell nucleus have to do with the cell's ability to replicate and the DNA that governs what the cell is.\n\nIn addition to RNA, the nucleoplasm contains other protiens, enzymes and nucleotides.
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Metabolism is the biochemical modification of chemical compounds in living organisms and cells. This includes the biosynthesis of complex organic molecules (anabolism) and their breakdown (catabolism). Metabolism usually consists of sequences of enzymatic steps, also called metabolic pathways. The total metabolism are all biochemical processes of an organism. The cell metabolism includes all chemical processes in a cell.
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the molecules the cell incorporates must be chemically modified to obtain Energy from them. In the first place a reaction occurs in the cytoplasm and then (for those organisms that perform respiration) inside the mitochondria some other reactions occur. The last ones are called respiration.
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if ur talking about cells... i think it is organelles...not sure
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Fermentation is anaerobic respiration. It takes place in the cytoplasm as the first step of aerobic respiration. The rest of aerobic respiration, with the addition of oxygen, takes place in the mitochondria and over their membranes. Neither of these events take place in the cell membrane, which would allow either the products or reactants to escape the cell.