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Strauss Cell Terms
Strauss: Cell Organelle & Movement Terms
| Term | Definition |
|---|---|
| Phospholipids | Molecules that ofrm the protective covering that surrounds cells |
| Cellulose | Carbohydrate that is one of the most abundant biological molecules on Earth |
| Amino Acids | Molecules that link together to form proteins |
| Lipids | Group of chemicals that contains fats, waxes, and steroids |
| Nucleic acids | Large, complex molecules that contain hereditary, or genetic information |
| Carbohydrates | Groups of chemicals, including sugars and starches, that provide energy to organisms |
| Enzymes | Group of proteins that help control chemical reactions |
| Nucleolus | Structure that makes ribosomes |
| Cytoplasm | Semifluid substance made primarily of water and organic compounds |
| Eukaryote | Cell containing a nucleus |
| Cell Membrane | Thin layer of lipid and protein that separates the cell's contents from the environment |
| Prokaryote | Cell containing no nucleus |
| Organelles | Structures that carry out the functions in a cell |
| Bilayer | Two phospholipid layers of the cell membrane |
| Nucleus | Control center of the cell |
| Chromosomes | Structures containing coded blueprints that control cell activity |
| Semipermeable | allowing only certain molecules to pass through membrane |
| Diffusion | The movement of molecules from an area of high concentration to an area of low concentration |
| Concentration Gradient | The difference between the concentration of a particular molecule in one area and its concentration in a neighboring area |
| Osmosis | The diffusion of water molecules across a semipermeable membrane |
| Hypertonic Solution | Solution having a higher concentration of solutes outside a cell than the concentration of solutes inside the cell |
| Hypotonic Solution | A solution having a lower concentration of solutes outside the cell than the concentration of solutes inside the cell |
| Isotonic Solution | A solution whose concentration is equal to the concentration of solutes inside the cell |
| Facilitated Diffusion | The process of transporting molecules by carrier proteins during diffusion |
| Active Transport | Transport of a substance across a cell membrane requring the use of energy; occurs against a concentration gradient |
| Bulk Transport | When large molecules, food, and other substances are packaged and moved across the membrane |
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breunigm
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