| A | B |
|---|
| active transport | diffusion of molecules across a membrane using energy |
| ATP | main energy source that cells use for most of their work |
| cell membrane | controls what goes in and out of the cell |
| cell respiration | chemical process that uses oxygen o convert chemical energy stored in organic molecules into ATP |
| cell wall | strong boundary outside of the cell membrane that protects and maintains the shape of cell |
| cellular movement | locomotion of cells |
| chloroplasts | the site of photosynthesis in plant cells |
| chromosomes | cell parts with information that determines what traits a living thing will have |
| cilia | short hairlike structures used by a cell to move and feed |
| cytoplasm | the clear, jellylike material between the cell membrane and the nucleus that makes up most of the cell |
| diffusion | net movement of the particles of a substance from where they are more concentrated to where they are less concentrated |
| eukaryote | organism whose cells contain a "true nucleus" |
| flagella | long, thin whip like structures used to move a cell |
| homeostasis | internal stability or "steady state" maintained by the body |
| mitochondria | produces energy for the cell; site of cell respiration |
| multicellular | consisting of many cells |
| nucleus | houses the DNA in a cell |
| osmosis | passive transport of water across a selectively permeable membrane |
| passive transport | diffusion of molecules across a membrane using no energy |
| photosynthesis | process by which plants use the sun's energy to convert water and carbon dioxides into sugars |
| prokaryote | organism whose cells lack a "true nucleus" |
| protein synthesis | creation of proteins by ribosomes |
| pseudopodia | temporary extensions of a cell's cytoplasm and cell membrane used to move and feed |
| ribosome | makes proteins |
| unicellular | consisting of a single cell |
| vacuole | a liquid filled space that stores food, water, and minerals |
