Cells and Heredity Chapter 1
Terms : Hide Images
| 620870530 | cells | The basic unit of structure and function in living things | |
| 620870531 | microscope | an instrument that makes small objects look larger | |
| 620870532 | cell theory | a widely accepted explanation of the relationship between cells and living things | |
| 620870533 | cell wall | A rigid structure that surrounds the cells of plants and most bacteria | |
| 620870534 | cell membrane | thin, flexible barrier around a cell; regulates what enters and leaves the cell | |
| 620870535 | nucleus | Control center of the cell | |
| 620870536 | organelles | tiny structures that carry out functions necessary for the cell to stay alive | |
| 620870537 | ribosomes | small organelles that make proteins | |
| 620870538 | cyctoplasm | region between the cell membrane and the nucleus | |
| 620870539 | mitochondria | organelles that convert the chemical energy stored in food into compounds that are more convenient for the cell to use | |
| 620870540 | endoplasmic reticulum (ER) | network of membranes within a cell's cytoplasm that produces a variety of substances | |
| 620870541 | Golgi apparatus | receives proteins and other newly formed materials from the ER, packages them, and distributes them to other parts of the cell or to the outside of the cell | |
| 620870542 | vacuole | an organelle that stores food, water, and other materials needed by the cell | |
| 620870543 | chloroplast | A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food. | |
| 620870544 | lysosomes | contain substances that break down large food particles into smaller ones | |
| 620870545 | multicellular | made of many cells | |
| 620870546 | unicellular | made up of one cell | |
| 620870547 | tissue | group of similar cells that perform a particular function | |
| 620870548 | organ | a group of body tissues that together form a function | |
| 620870549 | organ system | group of organs that work together to perform a specific function | |
| 620870550 | proteins | large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur | |
| 620870551 | enzymes | protein substances that speed up chemical reactions. | |
| 620870552 | DNA | the genetic material that carries information about an organism and is passed from parent to offspring | |
| 620870553 | passive transport | the movement of dissolved materials through a cell membrane without using cellular energy | |
| 620870554 | diffusion | The Movement of particles from regions of higher density to regions of lower density | |
| 620870555 | osmosis | diffusion of water through a selectively permeable membrane | |
| 620870556 | active transport | the movement of materials through a cell membrane using energy | |
| 620870557 | mitosis | The process in which the cell divides |
