| Term | Definition |
|---|
| mixture | a combination of substances in which individual substances retain their own properties |
| organic compounds | make up foods and cell membranes; four groups= carbohydrates, lipids, proteins, and nucleic acids |
| enzymes | proteins that speed up chemical reactions in cells without being changed |
| inorganic compounds | compounds that are made from elements other than carbon |
| diffusion | the net movement of molecules from an area where there are many where there are many to an area where there are few |
| equilibrium | a state when the molecules of a substance are spread evenly throughout a space |
| osmosis | the diffusion of water though a cell membrane |
| passive transport | movement of material across a cell membrane without the use of energy |
| active transport | movement of material across a cell membrane with the use of energy |
| endocytosis | a process by which cells transport a large body, such as a large protein molecule, through a cell membrane into the cytoplasm |
| exocytosis | a process by which a cell moves large molecules out through the cell membrane |
| metabolism | all of the chemical activities of an organism that enable it to live, grow, and reproduce |
| producer | green plants that make their own food by photosynthesis |
| consumers | organisms that can't make their own food |
| fermentation | a form of respiration that converts energy from glucose when the supply of oxygen is not sufficient; yeast and some bacteria use it to release energy and CO2 |
| biomass | organic material from plants or animals that is used for energy |
| gasohol | a mixture of gasoline and ethanol |
| biogas | a mixture of gases that can be burned directly or converted to gas or liquid fuels |
Combine with other sets
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