Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter Two
Cell Structure and Function
| Term | Definition |
|---|---|
| microscope | tool that makes things look larger than they really are. |
| lens | piece of curved glass or other clear material that causes light rays to come together or spread apart as they pass through. |
| cell | basic unit of structure and function in living things. |
| cell membrane | thin structure that surrounds a cell. |
| cytoplasm | gel-like substance inside the cell where most of the cell's activities take place. |
| nucleus | control center of a cell. |
| nuclear membrane | thin structure that surrounds and protects the nucleus. |
| organelle | small structure in the cytoplasm that does a special job. |
| mitochondria | structure that releases energy for a cell. |
| endoplasmic reticulum | small network of tubes inside a cell that substances move along. |
| ribosome | small round structure that makes proteins. |
| Golgi body | organelle that packages and sends materials to other places in the cell. |
| vacuole | space in the cytoplasm that stores the different substances a cell needs to survive. |
| lysosome | small round structure that breaks down nutrient molecules and old cell parts. |
| cell wall | thick outer layer that surrounds the cell membranes of plants and some simple organisms. |
| cellulose | carboyhydrate, made up of many sugar molecules, that forms most of the cell wall of a plant. |
| chloroplast | organelle in a plant cell that contains chlorophyll. |
| chlorophyll | green material in chloroplasts that is needed by plants to make food. |
| unicellular | containing only one cell |
| multicellular | containing more than one cell |
| pseudopod | fingerlike extension of the cytoplasm |
| guard cell | cell that controls the size of a stoma |
| stomata | tiny opening in the upper or lower surface of a leaf. |
| diffusion | movement of material from an area where molecules are crowded to an area where they are less crowded. |
| passive transport | movement of materials through a membrane without the use of energy. |
| osmosis | movement of water though a membrane. |
| active transport | movement of materials through a membrane using energy. |
| energy | the ability to do work or cause change. |
| photosynthesis | food making process in plants and other organisms that uses sunlight. |
| glucose | a simple type of sugar |
| fermentation | process by which a cell releases energy from food without using oxygen. |
| chromosome | cell part that determines which trait a living thing will have. |
| chromatin | threadlike material that makes up a chromosome. |
| mitosis | division of the nucleus |
| daughter cell | new cell produced by cell division |
Created by:
theduc
Popular Biology sets