| Term | Definition |
|---|
| cell | The smallest part of a living organism that still does all the major jobs that the large organism does. |
| cell membrane | The outer layer on the cell which controls what can enter and what can leave the cell. |
| semi permeable | This is an adjective. It describes how the cell membrane will let somethings go through but won't let others. |
| atom | The smallest whole unit that makes up living and nonliving things. |
| diffusion | A movement of a molecule from a crowded area to a less crowded area. It does not require energy. |
| carbs/starch | An energy rich type of food source, such as sugar and potatoes, that is used to get quick energy. They contain carbon, hydrogen, and oxygen atoms. |
| protein | A food type, such as meats and eggs, that is used by the body to build and repair the body. They contain carbon, hydrogen, oxygen, and nitrogen atoms. |
| fats | Energy rich food type, such as butter or oils, that is used by the body for long term energy. They contain carbon, hydrogen, and oxygen atoms in a complex arrangement which stores more energy than carbohydrates. |
| circulatory system | The human body system that contains the heart, blood, and all of the blood vessels. It delivers all of the nutrients that the cell needs. |
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