Unit 2b: Using Energy
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Last updated 11:41 AM on 9/22/23
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10 Terms
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Homeostasis
Maintaining a stable internal environment
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Buffers
Immediate means of regulating pH
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Passive Transport
Moving molecules without using energy
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Osmosis
Passive transport method involving the movement of water across a semi-permeable membrane
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Diffusion
Passive transport method in which molecules spread out from areas of high to low concentration
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Active Transport
Moving molecules using energy
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Concentration Gradient
Difference in concentrations between two areas
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Communication
Transfer of information
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Pheromones
Chemicals used for communication in many organisms
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Hormones
Chemicals used for communication between cells in many multicellular organisms
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