passive transport - particles moving across a cell membrane without using energy, channels - passageways in a cell membrane, active transport - the movement of particles using energy, diffusion - movement of particles from an area of high concentration to an area of low concentration, osmosis - movement of water across a semipermeable membrane, endocytosis - process by which large particles enter the cell, exocytosis - process by which large particles exit the cell, cellular respiration - cells use oxygen to produce energy, fermantation - breakdown of food without using oxygen, photosynthesis - process by which plants use light to produce food, chromosomes - tiny structures inside cells made of DNA and protein,

Chapter 2 Science

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