| Term | Definition |
|---|
| cell | the smallest unit that can perform life processes |
| cell membrane | a layer that covers the cell's surface |
| organelles | the structures that perform specific functions within the cell |
| nuculeus | a membrane-bound organelle that contains the cells |
| prokaryote | single celled organisms |
| eukaryote | anorganism made up of cells that have a nucleus enclosed by a membrane |
| animolecules | littel animals |
| protist | found in water |
| surface-to-are-volume ratio | surface area/volume |
| cyptoplasm | the fluid inside a cell |
| DNA | genetic material that carries information |
| extremophiles | heat and salt-loving achea |
| cell wall | a structure that surrounds the cell membrane |
| cellulose | a complex sugar that is hard to digest |
| chitin | type of cell wall |
| lipids | a group of compounds that does not dissolve in water |
| phospholipid | lipid that contains phosphorus |
| hydrophobilc | afraid of water |
| hydrophilic | loves water |
| cytoskeleton | proteins in the cytoplasm |
| ribosomes | a cell organelle composed of RNA and protein |
| amino | type of acid. |
| endoplasmic reticulum | membranes found in a cell's eytoplasm |
| mitochondria | organelle surrounded by membranes |
| photosynthesis | when plants use materials to make sugar and oxygen |
| chlorophyll | a green pigment. |
| Golgi complex | an organell that packages materials |
| vesicle | a small cavity |
| lysosome | cell organell that contains digestive enzymes |
| vacuoles | large vesicle |
| multicellular organism | made of many cells |
| tissure | group of similar cells that perform a common function |
| organ | a collection of tissues that cary out a specialized function of the body |
| organ system | group of organs that work together to perform body functions |
| organism | a collection of tissues that carry out a specialized function of the body |
| organ system | group of organs that work together to perform body functions |
| organism | a living thing |
| uncellular organizm | a single cell |
| structure | the arrangement of parts in an organism |
| function | the special, normal, or proper activity of an organ or part |
| alveoli | tiny air sacs |
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