| Term | Definition |
|---|---|
| cell | the basic sturctural unit of a living thing |
| nucleus | the storehouse of the cell's most important chemical information |
| organelle | a cell structure that performs specific functions |
| Cell Theory | *all living things are made of one or more cells *the cell is the smallest unit of a living thing *cells come from other cells |
| cell membrane | thin bendable cover around all cells which lets food, water, and gases enter and lets waste leave |
| cell wall | found in plant cells protects and helps a plant to stand up |
| cytoplasm | liquid between the nucleus and cell membrane, all organelles are found here |
| ribosome | they make proteins |
| Golgi apparatus | changes proteins so they will be ready to leave the cell |
| lysosomes | they help the cell break down food or nutrients and cell parts |
| vacuoles | sacs filled with liquid, they hold water, food,and waste |
| mitochondria | peanut shaped organelle that is know as the power plants of the cell, production of energy occurs here |
| chloroplasts | contain chlorophyll with gives plants their green color, food for the plant is made here |
| Endoplasmic reticulum | group of membranes and tubes, breaks down deadly matter and controls the amounts of some chemicals |
| amphibian | a vertebrate that begins its life in water but lives part of the time on land |
| cnidarian | an invertebrate with radial symmetry, a saclike body, a true mouth, and the ability to digest food |
| invertebrate | an animal without a backbone |
| symmetry | a matching pattern, either on opposite sides of an imaginary dividing line or around a middle point |
| vertebrate | an animal with a backbone |
