| A | B |
| organic compounds | have carbon |
| inorganic compounds | don't have carbon |
| proteins | large organic molecules with carbon |
| amino acides | what proteins are made up of |
| element | cannot be broken down |
| compound | when two or more elements combine |
| atom | smallest unit of an element |
| carbohydrate | energy rich organic compound |
| lipids | fats, oils, and waxes are examples |
| DNA | genetic material that carries info |
| water | needed to carry out chemical reactions |
| nucleic acids | contains information that cells need to carry out functions |
| cell membrane | decides what goes in and out of a cell |
| diffusion | molecules move from high to low concentration |
| osmosis | when water diffuses through cell membrane into cell |
| active transport | uses energy to transport materials |
| passive transport | does not use energy to transport materials |
| sun | where all energy comes from |
| photosynthesis | how plant cells make energy |
| pigments | colored checmical compounds that absorb light |
| chlorophyll | main pigment found in plant cells |
| stomata | small openings on the underside of cell leaves |
| respiration | process where cells break down sugars |
| interphase | cell grows, makes a copy of DNA |
| mitosis | stage where cell's nucleus divides |
| cytokinesis | cytoplasm divids and becomes two new cells |