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19 Cards in this Set
- Front
- Back
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cells |
the basic units of living organisms |
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simple light microscope |
contains one lens and uses light to view objects |
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compound light microscopes |
use a series of lenses to magnify objects in steps up to 1500x |
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cell theory |
1)all organisms composed one or more cells; 2)cell basic unit structure and organization of organisms; 3)all cells come from preexisting cells |
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organelles |
small specialized structures in every cell |
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cells |
the basic units of living organisms |
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eukaryotes |
membrane-bound organelles that allows diff parts of cell to perform diff functions |
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prokaryotes |
non membrane-bound organelle where metabolism takes place in the cytoplasm |
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plasma membrane |
flexible boundary between the cell and its environment |
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glucose |
necessary for the function of cells |
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amino acids |
necessary for the function of cells |
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lipids |
necessary for the function of cells |
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selective permeability |
membrane allows some molecules to pass through while keeping others out |
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phospholipid |
has a glycerol backbone; is formed when a phosphate group replaces a fatty acid |
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phosphate group |
critical for formation and function of the plasma membrane |
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water |
key component of living organisms in and out of the cell |
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fluid mosaic model |
model of plasma membrane; creates a "mosaic"/pattern on the membrane surface |
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cholesterol |
in plasma membrane; helps stabilize phospholipids-preventing fatty acid tails from sticking together; critical role in stability of plasma membrane |
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transport proteins |
span the entire membrane and regulate homeostasis; move needed substances/waste materials out of the plasma membrane |
