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Unit 4 Vocabulary

QuestionAnswer
Osmosis the diffusion of water through a semipermeable membrane
Diffusion The movement of particles from regions of higher density to regions of lower density.
Passive Transport the movement of substances across a cell membrane without the use of energy by the cell
Active Transport The movement of substances across the cell membrane that requires the cell to use energy.
Endocytosis The process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
Exocytosis The process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane.
Photosynthesis The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.
Cellular Respiration The process by which cells use oxygen to produce energy from food.
Fermentation The breakdown of food without the use of oxygen
Chloroplast A cellular organelle that is found in plants where photosynthesis occurs.
ATP Adenosine Triphosphate, a molecule that acts as the main energy source for cell processes
Cell Membrane A cellular organelle that controls movement of particle in and out of the cell.
Concentration The strength of a solution; number of molecules of a substance in a given volume
Hypotonic Solution A solution that has less solute and more water than another solution
Hypertonic Solution A solution that has more water and less solute and another solution.
Equilibrium The state of balance or static
Created by: madisonnegley
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