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| a collection of living matter enclosed by a barrier that separates the cell from its surroundings; the basic unit of all forms of life |
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- all living things are composed of cells
- cells are the basic unit of struture & function in all living things
- new cells are produced from existing cells
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| a thin flexable barrier around the cell; regulates what enters and leaves the cell |
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| a strong layer around the cell membrane in plants algae & some bacteria |
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| the center of the atom which contains the protons and the neutrons;nin cellc, large structure inside some cells that contain the cell's DNA & controls the cell's activities |
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| material inside the cell membrane NOT INCLUDING THE NUCLEUS |
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| single celled micro-organism thant lacks a nucleus |
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| organism whos cells contain nuclei |
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| specialized structure that performs celluar functions within a eukaryotic cell |
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| small dense region within most nuclei; starts assembly of ribosomes |
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| network of protien filaments within some cells that help the cell maintain the shape & is involved in cell movement |
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| organelle in plant cell that uses sunlightto make energy-rich food through photosynthesis |
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| internal membrane system n cells where components of the cell membrane are asembled and some protiens r modified |
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stack in membranes n the cell w
hich enzymes attach to carbs & lipids to proteins |
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| long,thin fiber that functions in the movement and support of the cell |
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| cell organelle filled with enzymes needed to break down certain materials in the cell |
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| hollow tube of protein that maintains cell shape and can also serve as a track along which organelles are moved |
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| group of tissues that work to perfom closely related functions |
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| group of organs that work together |
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