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ch.7 vocab
| Term | Definition |
|---|---|
| cell | a basic unit of living organisms |
| cell theory | a theory made up of 3 ideas.. (all organisms are composed of one or more cells,the cell is the basic unit of structure,and all cells come from preexisting cells) |
| compound light microscope | a microscope that uses a series of lenses to magnify objects in steps |
| eukaryote | eukaryotic cells |
| nucleus | the central membrane bound organelle that manages or controls cellular functions |
| organelle | small specialized structures |
| prokaryote | organisms that do not have membrane bound organelles |
| fluid mosaic model | the model of the plasma membrane |
| phospholipid | when a phosphate group replaces a fatty acid |
| plasma membrane | a flexible boundary between the cell and its environment, that allows steady supplie of nutrients to come into the cell |
| selective permeability | a process in which a membrane allows some molecules to pass through while keeping others out |
| transport proteins | proteins that span an entire membrane and help form the selectively permeable membrane |
| cell wall | a fairly rigid structure located outside the plasma membrane that provide additional support and protection |
| chlorophll | traps light energy and gives leaves and stems their green color |
| chloroplasts | are cell organelles that capture light energy and convert it to chemical energy |
| chromatin | strands of the genetic material, DNA |
| cilia | short numerous projections that look like hairs |
| cytoplasm | clear gelatinous fluid inside a cell |
| cytoskeleton | a supportive structure within the cytoplasm |
| endoplasmic reticulum | the site of cellular chemical reactions |
| flagella | longer projections that move with a whip like motion |
| golgi apparatus | flattened stack of tubular membranes that modifies the proteins |
| lysosome | organelles that contain digestive enzymes |
| microfilament | small solid protein fibers |
| microtubule | thin, hollow cylinder made of proteins |
| mitochondria | are membrane-bound organelles in plant and animal cells |
| nucleolus | prominent organelle |
| plastid | where the chloroplasts belongs in a plant organelle |
| ribosome | site where the cell produces proteins according to the directions |
| vacuole | membrane-bound compartments |
Created by:
tritonhawk55
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