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Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.

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Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation).

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an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae).

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a plastid in green plant cells which contains chlorophyll and in which photosynthesis takes place.

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the central and most important part of an object, movement, or group, forming the basis for its activity and growth.

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the material or protoplasm within a living cell, excluding the nucleus.

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In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell.

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In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell.

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In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction. ... However, many other scientists like Rudolf Virchow contributed to the theory.

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An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination

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an optical instrument for forming magnified images of small objects, consisting of an objective lens with a very short focal length and an eyepiece with a longer focal length, both lenses mounted in the same tube. Origin of compound microscope.

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the action of magnifying something or the process of being magnified.

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resolution is a measure of the level of detail that can be seen using a microscope.