| A | B |
|---|
| tissue | group of similar cells |
| organ | tissues that carry out a specialized function of the body |
| organ system | groups of organs working together |
| organism | a living thing |
| unicellular | made of one cell |
| multicellular | made of many cells |
| cell membrane | layer that covers the cell's surface |
| organelle | one of the small bodies inside a cell's cytoplasm |
| cytoplasm | cellular fluid that fills the cell |
| nucleus | control center of the cell, contains the DNA |
| prokaryote | single celled organism without a nucleus |
| eukaryote | organism that is made up of cells with a nucleus |
| cell wall | rigidf structure that surrounds the cell membrane oand provides support |
| ribosome | cell organelle that is composed of RNA andprotein |
| endoplasmic reticulum | system of membranes that assist in the production, processing and transport of proteins |
| mitochondrion | organelle surrounded by two membranes and produces energy for the cell |
| chloroplast | organelle found in plant and algae cells where photosynthesis occurs |
| Golgi complex | organelle that helps make and package materials to be transported out of the cell |
| cytoskeleton | cytoplasmic network of protein filaments that helps in cell movement, shape and division |
| vesicle | small sac that contains materials in a eukaryotic cell |
| vacuole | type of vesicle that stores water |
| cell | smallest functional and structural unit of all living organisms |
| lysosome | organelle that contains digestive enzymes |
