How is the structure of a mitochondrion well adapted for the activities it carries out?
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For one thing, mitochondria have a double membrane, so the reactions that take place within it are seperate from the cytoplasm and will not disrupt any of the cell's other activities (i.e., the mitochondria is slightly more acidic than the cytoplasm). \n\nFurthermore, the inner membrane is folded to yield a lot of surface area, thus allowing for more reactions to take place.\n\nYou could also talk about how the intermembrane space (the space between the inner and outermembranes) allows for an electrochemical gradient to be built up during the process of electron transport.
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I'm not sure if you mean the "nucleus" or the "nucleolus", but either way, in cells which have a nucleus, the DNA resides here mostly because of seperation of activities in the cell - all of the enzymes used to process DNA (ie, winding and unwinding, transcription into RNA) are in the nucleus.  Other organelles in a cell, like the mitochondria or Golgi, similarly have membranes and components for specific cell activities.
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The cytoplasm containing the other cell parts.
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B) Membrane-bound organelles\nThe procariotic cells are like a water-filled baloon, they are just a cover with water and other things (of course, this is only an example), while eukaryotic cells have compartiments.\nEvery cell has DNA, that's the way information is passed from cell to cell when they reproduce.\nRibosomes are important for producing proteins, every cell has to have them, even if with time they lose them.\nCytoplasm is the 75% of every cell, it's basically water, proteins and other things.
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Presence of Mitochondria\nCilia or Flagella used for cellular locomotion\nPresence of RNA
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That would be the mitochondria. The energy store of the human body. \n\nLearn how to spell ORGANELLE!!!!
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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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1. The cells (and their organelles like mitochondria) swell (because the ability of the plasma membrane to control the passage of ions and water is disrupted).\n\n2. The cell contents leak out, leading to inflammation of surrounding tissues.
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1. I guess You think about the nexuses. Its a metabolic and ionic connection of cells in form of ionic channels (built by proteins called conexones or conexone proteins).It provides rapid transport of membrane polarization changes. Its a form of electric synapses.\n2.I guess You think about the lysosomes. They're created by Golgi's Apart ('Trans" side).Lysosomic enzymes are created by Rough Endoplasmic Reticulum and GA. Lysosomical endoenvironment's pH is about 5. Function- to connect with endosomes, phagosomes and autophagosomes and to catalyze and guide analysis reaction (some kinds of digestive reactions).
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Don't quote me on this one, but the energy produced via redox reactions when electrons are passed down the electron transport chain, is used to pump protons against their concentration gradient.\nIn the mitochondria, the protons are pumped into the space between the inner and outer membranes, whereas in chloroplasts, the protons are pumped into the space in the thylakoid. The accumulation of protons in those spaces causes the pH to drop, and sets up a voltage and a concentration gradient, thus causing protons to diffuse through proton channels in the enzyme ATP synthetase. This causes a part of ATP synthetase to rotate, and the energy produced is use to phosphorylate ADP to ATP.\nIn the mitochondria, the electrons are combined with a proton and oxygen at the end of the chain, so water is produced as a waste product.\nIn chloroplasts, the electron transport chain is located between Photosystems II and I, thus an electron from Photosystem II is passed onto Photosystem I. Photosystem I, having been excited and ionised beforehand, therefore returns to being electrically neutral.
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red blood cells do not have to produce any energy beacuse their main work is to transport oxygen which happens by osmosis which does not require any energy!!!! thats why the red blood cells have no mitochondria as that will occupy space which will reduce the efficency of osmosis!!!!
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False, its the other way round.\nSingle celled orgarnisms have only one cell. this cell has different components that help it become multi-funtional. this means that its single cell are not specialised. for example. an Amoeaba which is a single celled organism has a nuclei which it uses for its metabolic processes, its mitochondria for energy, its cell wall for movement. so this one cell of an amoeba can perform different functions.\n\nmulti cellular ogarnisms have different cells that have been specialised for different purposes. e.g respiratory cells are for metabolic processes, growth cells are for growth, digestive cells are for digestion. \n\nthe digestive cells in a multicellular organisn come together to form digestive tissues. the digestive tissues will come together to form a digestive organ, different digestive organs will form the digestive system. different systems form the body.\n\nthanks. chaoo
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Cytoplasm (which consists of cytosol and organelles).
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The function is as a power source. Energy in the\nform of chemicals with highly active electrons are\nstored in the mitochondria. Here is an excellent site.\ncellbio.utmb.edu/cellbio/\nmitochondria_1.htm#\npowerhouses\n A fascinating little tidbit is that it is the only\nplace outside the nucleus that contains DNA. Thus its\nname, mitochondrial DNA and it's only passed down\ngenetically thru the mother.
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You are asking about the structures called ATP synthases.  These are protein complexes embedded in the inner mitochondrial membrane, and are activated by protons "pumped" across this membrane during the passage of electrons down electron transport chains embedded in the same membrane.  A high proton concentration gradient is produced that promotes passage of protons back across the inner mitochondrial membrane, but they can cross the membrane only by passing through the ATP synthase complexes.  The ATP synthase has a rotary component and a stationary component; when activated the ATP synthase carries out what is usually referred to as oxidative phosphorylation of ADP to ATP.  It is referred to as oxidative because oxygen is required for the functioning of the electron transport chains; in the absence of oxygen the proton concentration gradient cannot be maintained between the two mitochondrial membranes and ATP cannot be synthesized.
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A model of a cell is a good choice.
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In an eukaroyotic plant cell the mitochondria is contained in the nucleus. The mitochondria are the "power plants" of the cell. There are three main classes of plant cells: Epidermis, Vascular tissue, and Ground tissue. The second type transports materials through the plant. Since the plant is larger, being a tree, perhaps the longer distance means the cells need more mitochondria to travel that longer distance. In a bush this would not be neccessary. The third type peforms photosynthesis and does starch storage and stuctural support. These types are further broken down into Parenchyma, Collenchyma, and Sclerenchyma. Since it is a larger plant and more starch needs to be stored, perhaps this explains it. More powerhouses would seems to me to be a benefit in greater starch storage for a larger plant. I did not know there could be more mitochondria in one plant cell than in another. Your statement was the first I'd heard of it.