| A | B |
| vacuole | membrane-bound, fluid filled sac, provides storage for food, enzymes & waste |
| Golgi apparatus | closely-stacked, flattened membrane sacs, modifies proteins & repackages them |
| ribosomes | synthesizes (makes) proteins |
| endoplasmic reticulum | folded membrane that forms a network of interconnected compartments in the cytoplasm |
| cytoplasm | clear fluid inside cell |
| nucleus | manages cell functions in eukaryotic cell |
| chloroplast | contains chlorophyll which traps energy (sunlight), contains stacks of sacs called grana |
| lysosomes | sacs containing digestive enzymes that get rid of cell waste or bacteria |
| cell wall | gives a plant, fungi, or protist cell support |
| mitochondria | produce a usable form of energy for the cell |
| plastid | a chloroplast is one of these, others store starches or lipids |
| Schleiden | Scientist - concluded that all living plants are made of cells |
| Schwann | Scientist - concluded all animals are made of cells |
| Hooke | coined the term "cell" after observing a cork plant which had square looking cells |
| Leeuwenhoek | Scientist that described first cells with a simple microscope |
| compound light microscope | uses 2 or more lenses to magnify living/prepared slides |
| electron microscope | microscope that allowed scientists to view molecules |
| plasma membrane | bilipid layer of molecules with protein molecules embedded in it, controls what enters and leaves the cell |
| prokaryote | organisms that lack internal membrane bound structures, have no nucleus and are usually single celled |
| eukaryote | have a nucleus, membrane bound organelles, and may be either single or multicellular |
| cytoskeleton | microscopic tubules or fibers that support the cell |
| cilia | numerous hair-like structures on the cell's surface, involved in locomotion |
| flagella | whip-like, long, structures, not many on a cell's surface, locomotion |
| unicellular | animals that are one celled, locomotion is usually by cilia or flagella |
| fluid mosaic model | describes the plasma membrane as a structure that is liquid and not rigid |
| transport proteins | span the plasma membrane, create a selectively permeable membrane that regulates what enters and leaves the cell |