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Stack #52009
Cell Processes
| Question | Answer |
|---|---|
| matter | makes up all things |
| atoms | the smallest unit of matter |
| What 3 things make up an atom? | protons, neutrons, electrons |
| What charge does a proton have? | positive |
| What charge does a neutron have? | neutral |
| What charge does an electron have? | negative |
| Element | made up of only one kind of atom...can't be broken down into a simpler form |
| How do atoms combine? | by sharing their outer electrons |
| Ion | an atom with either a positive or negative charge |
| Ions are attracted to... | other ions with an opposite charge |
| A positive ion is attracted to... | an ion with a negative charge |
| mixture | a combination of substances in swhich individual substances retain their own properties |
| solution | a mixture in which one o rmore substances mix evenly with other substances |
| suspension | a mixture in which substances are evenly spread through a liquid or gas |
| organic compounds | make up foods and cell membranes |
| passive transport | the movement of particles across the cell membrane by diffusion...uses NO energy |
| active transport | when materials require energy to move through a cell membrane...transport proteins are used in active transport |
| endocytosis | a process by which cells transport a large body, such as a large protein molecule, through a cell membrane into the cytoplasm |
| metabolism | the total of all chemical activities of an organism that enable it to stay alive, grow,and reproduce |
| producer | organism that makes its own food. Plants are examples |
| consumer | organism that can't make their own food |
| photosynthesis | when producers change light energy into chemical energy |
| respiration | when food molecules are broken down to release stored energy. Carbon dioxide an water are given off as waste products |
| fermentation | a form of respiration that converts energy from glucose when oxygen is insufficient. |
| biomass | organic material from plants or animals that is used from energy |
| gasohol | a mixture of gasoline and ethanol |
| biogas | a mixture of gases that can be stored and transported like natureal gas |
Created by:
sarahschmidt
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