| A | B |
|---|
| organic molecules | compounds made of carbon carbon bonds |
| chemical reaction | formation or breaking of chemical bonds |
| carbohydrates | a group of compounds made of sugars |
| starch and glycogen | complex carbohydrates used for storing energy |
| cellulose | complex carbohydrate used by plants for cell walls |
| lipid | organic molecules that are used for energy storage and cell membranes |
| fat | solid lipid that is saturated |
| protein | large molecules made of amino acids |
| enzyme | protein that controls chemical reactions |
| nucleic acid | compound that is made of nucleotides |
| amino acid | subunit which makes up proteins |
| DNA | nucleic acid which holds the codes for amino acid sequences for proteins |
| homeostasis | maintenance of a stable internal environment |
| ATP | major fuel used for all cell activities that require energy |
| phospholipids | molecules that form much of the cell membrane |
| heredity | the passing of traits from parent to offspring |
| cell | a membrane-covered structure that contains all of the materials necessary for life |
| stimulus | anything that affects the activity of an organism, organ, or tissue |
| asexual reproduction | reproduction in which a single parent produces offspring that are genetically indentical to the parent |
| sexual reproduction | reproduction in which two parents are required to produce offspring that will share characteristics of both parents |
| metabolism | the combined chemical processes that occur in a cell or living organism |
| producer | an organism that uses sunlight directly to make sugar |
| consumer | an organism that eats producers or other organisms for energy |
| decomposer | an organism that gets energy by breaking down remains of dead organisms |
