protists get energy by what?
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That question would require an essay to answer fully.\n\nSome protists, such as kelp, are get energy by photosynthesis.\n\nSome protists, such as Amoeba, get energy by endocytosis.\n\nSome protists, such as Entomoeba, gete energy by direst absorption.\n\nAnd so on and so forth. There are hundreds of thousands of species of protists and they use every conceivable method of obtaining energy.
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Photosynthesis generally takes light, CO2 & water and makes sugars.  These sugars are chemically converted in to food, propane, methanol, ethanol, coal, oil, wood and all the other fossil fuels and orgnic compounds on the earth, through natural, geologic, and/or manmade processes.  At every step of each process, energy is lost.  To gain usable energy, other than in biologic processes, requires burning something, and using the expansion of heated gases to create physical force (motion), or then using physical force to drive a generator to create electrical current.    \n\nWe do not currently have an effecient method of making electicity using incoming Solar radiation.  Current solar cells convert a small percentage of one section of the electromagnetic spectrum into electric current.\n\nHope this helps.
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The sun provides energy to living organisms of the Earth.  There are autrophs and heterotrophs.  Autotrophs (like plants) use sunlight to turn CO2 and Water, which cannot be further oxidized as fuel into GLucose, which can be burned by a cell as a source of fuel.  Low rung food chain heterotrophs eat autotrophs (these are herbivores) and get their calories (food is a source of chemical potential energy) from the glucose (and some other chemicals) made by autotrophs.  \n\nHigher level heterotrophs eat the lower level heterotrophs, getting their calories from proteins and fats of the herbivores they are eating.  The calories contained in the proteins and fats of the herbivores is derived from the calories of the autotrophs.  In essence, the calories from food on this planet are derived from energy from sunlight that plants have converted to chemical form.
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Photosynthesis goes on in the chloroplasts\nphotosynthesis- make their own food by converting light energy into chemical energy
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The protist needs to maintain homeostasis, the balance in the body, in order to live. Diffusion and Osmosis acheive this by allowing nutrientrs to come in and wastes to leave.
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microchondria convert food to energy\nI think chloroplasts use the sun to create food which can be converted to energy. You can look it up on google.com.
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while i cant give you scientific terms, the best short answer i can give is that they are all forms of energy.
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Life proceeds on chemistry.  Consumption of carbon proteins (or photosynthesis in plants) leading to the production of ATP (adenosine triphosphate).  ATP, being the energy storage and transfer molecule in just about all living cells is truly the stuff of life.
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Theory? I mean, I can think of the endosymbiotic theory, but that's eukaryotes. Perhaps you mean the organelle that carries out photosynthesis in prokaryotes?
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a heterotroph obtains energy from food it consumes. This is opposed to an autotroph which obtains energy directly (such as a plant absorbing light energy).
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"No protists are producers."\n\nI'm sure of it. Protists are the "junk drawer" of kingdoms.\nThe category of Protists includes many widely ranging microbes, including slime molds, protozoa and primitive algae. They are all eukaryotic <you-carry-ah-tick> creatures, meaning their DNA is enclosed in a nucleus inside the cell (unlike bacteria, which are prokaryotic <pro-carry-ah-tick> and have no nucleus to enclose their DNA. \n\nAlgae, Protozoa, Slime molds: Some produce and some consume.
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euglena are alga which use photosynthesis to produce their own  energy source, primarily, glucose.  cyanobacteria must occupy a biological host in order to survive and multiply.
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Most life on Earth is powered by the Sun. Plants use Photosynthesis to make carbohydrates from the Sun. Animals eat Plants, we eat both plants and animals that eat plants. Therefore indirectly virtually all of our food energy comes from the Sun. Our Brain uses our food energy to operate. Therefore our brain is powered by the Sun.
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Cells get most of their energy when they break down a glucose molecule in the mitochondrion. This results in the end production of 36 ATP, the energy currency of the cell.
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In Photosynthesis, plants use the sun's energy as light to transform carbon dioxide and water into glucose.  In cellular respiration,  glucose is ultimately broken down to yield carbon dioxide and water, and the energy from this process is stored as ATP molecules.
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Chromosones record genetic information. And aren't even organelles, they're part of the nucleus. ---> X\nNucleus ----> X\n\nMitochondria turn sugar into AtP (energy).\nChlorpasts store solar energy in the form of sugar.\n\nMitochondria function whenever oxygen is present and sugar is available.\nChloroplasts whenever CO2 and sun-light are available.
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The major difference is that protist are single celled eucaryotic (have membrane bound organelles) whereas Monera are procaryotic (lack membrane bound organelles).