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Cell Lesson 4

Homeostasis & Cell Processes

TermDefinition
Homeostasis The maintenance of a constant internal state in a changing environment.
Photosynthesis When water, carbon dioxide & sunlight produce sugar and oxygen in plants.
Chloroplast Organelle filled with chlorophyll that is involved in photosynthesis.
Mitosis The process of cell division that creates two identical cells with the same DNA.
Cellular Respiration The combination of oxygen and broken down food to produce energy in the cell. The process occurs in the mitochondria
Passive Transport The movement of particles across the cell membrane without the use of energy from the cell.
Active Transport The movement of particles against a concentration gradient that requires the use of a cell's energy.
Diffusion The movement of molecules from a higher concentration to lower concentration.
Osmosis The diffusion of water through a semi-permeable membrane
Endocytosis The process by which a cell uses energy to surround a particle or particles and enclose the particle(s) in a vesicle to bring the particle(s) into the cell.
Exocytosis When particles are enclosed in a vesicle and released from a cell.
Created by: benjamin.grimes
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