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Transcript
Warm-up Questions: Balancing the cell • What do ribosomes produce? • What is the product of the mitochondria? • The tendency of a system to maintain its internal stability. • We sweat or shiver to maintain our body’s core temperature. • Homeostasis happens, as well, at a cellular level in order to maintain the stability of the cells. • The plasma membrane/cell wall use different processes like diffusion and osmosis to allow particles (water, salt, wastes, etc) in and out of the cell. • When the cell is not in a state of homeostasis, the nucleus can send out signals to other organelles in order to have them adjust their current processing to account for the imbalance. • Diffusion is the transport of molecules from an area of high concentration to an area of low concentration. Spraying perfume is an example of diffusion. • Osmosis is the transport of water through the semi-permeable plasma membrane or cell wall in plants.
