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Science vocab 117
science terms 117
Term | Definition |
---|---|
Homeostasis | The maintenance of a constant internal state in a changing environment. |
Photosynthesis | The sun provides the energy for plants to grow and make food |
Cellular Respiration | The process by which cells use oxygen to produce energy from food |
Mitosis | Equal numbers of chromosomes are separated, and the nucleus splits to form two identical nuclei |
Passive Transport | The movement of particles across a cell membrane without the use of energy by the cell |
Diffusion | The movement of molecules from high concentrations to low concentrations |
Osmosis | They diffusion of water through a semi-permeable membrane |
Active Transport | The movement of particles against a concentration gradient and requires the cell to use energy |
Endocytosis | The process which a cell uses energy to surround a particle and encloses the particle in a vesicle to bring the particle into the cell |
Exocytosis | When particles are enclosed in a vesicle and released from a cell |