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7Sci CH19
7th Science CH19 How Cells Do Their Jobs
Term | Definition |
---|---|
diffusion | process by which molecules move from an area of higher concentration to an area of lower concentration until equilibrium is reached; occurs without the use of energy by the cell |
fermentation | energy-releasing process that breaks down glucose without the use of oxygen |
organ | body structure made up of various types of tissue that all work together to perform a specific function |
organisms | a living thing; may be one-celled or many-celled |
organ systems | groups of organs that work together to perform a specific function for example the circulatory system |
osmosis | diffusion of water through a semipermeable cell membrane from an area of higher concentration to an area of lower concentration until equilibrium is achieved; occurs without the use of energy by the cell |
respiration | series of chemical reactions by which energy is released from glucose in the presence of oxygen in your body |
tissues | groups of similar types of cells that work together to perform the same function |