| A | B |
|---|
| cell wall | surrounds cell membrane; supports membrane |
| cell membrane | covers sell surface; acts a barrier between the inside of the cell and the environment |
| nucleus | control center for cell; contains the DNA |
| ribosomes | make proteins from amino acids |
| cytoplasm | fluid in cells |
| nuclear membrane | surrounds the nucleus |
| nucleolus | spot inside the nucleus; stores material used to make ribosomes |
| endoplasmic reticulum | makes lipids and other materials for use inside and outside the cell |
| mitochondria | organelles surrounded by two membranes that break down food molcules to make ATP (bean shaped) |
| chloroplast | organelles found in plant and algae cells where photosynthesis occurs |
| gogli complex | modifies packages and transports materials out of cells |
| vacuoles | structures in plant cells which store water |
| lysosomes | digests food particles, wastes and foreign invaders |
| multicellular | made up of many cells |
| unicellular | made up of one cell |
| population | a group of individuals of the same species that live together in the same area |
| ecosystem | a community of organisms and their nonliving environment |
| community | all the populations of different species that live and interact in an area |
