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Cells : Lesson 5

Lesson 5: Homeostasis and Cell Processes

TermDefinition
Homeostasis The maintenance of a constant internal state in a changing environment.
Diffusion The movement of particles from regions of higher density to regions of lower density.
Photosynthesis The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.
Osmosis The diffusion of water through a semipermeable membrane.
Cellular Respiration The process by which cells use oxygen to produce energy from food.
Active Transport The movement of substances across cell membrane that requires the cell to use energy.
Mitosis In eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes.
Endocytosis A process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
Passive Transport The movement of substances across a cell membrane without the use of energy by the cell.
Exocytosis The process in which a cell release a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane.
Created by: qveen.adri
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