| Definition | Term |
| tiny, round organelles made of protein and other material? | |
| the fluid inside a cell? | |
| the reason that most cells are limited to a ver small size? | |
| a protective layer that covers the cell's surface and acts as a barrier? | |
| small bodies in a cell's cytoplasm that are specialized to perform specific functions? | |
| in a eukaryotic cell, an organism that contains the cell's DNA and that has a role in growth, metabolism, and reproduction? | |
| an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles? | |
| prokaryotes that are the smallest cells and that have ribosomes? | |
| prokaryotes that include extremophiles, organisms that live in extreme conditions? | |
| an organism made up of cells that have a nucleus enclosed by a membrane as well as membrane-bound organelles? | |
| a rigid structure that gives support to a plant cell? | |
| a web of proteins in the cytoplasm that keeps the cell's membrane from collapsing? | |
| organelles that make proteins? | |
| a system of folded membranes that functions as the internal delivery system of the cell? | |
| an organelle that functions as the main power source of a cell, breaking down sugar to produce energy? | |
| organelles in which photosynthesis takes place? | |
| the organelle that packages and distributes proteins? | |
| organelles that contain digestive enzymes? | |