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human bio chapter 3
Cells
| Answer | |
|---|---|
| what are the 6 functions of cells | 1. Basic unit of life 2. protection and support 3. movement 4. Communication 5. Cell membrane 6. Inheritance |
| Organelles | structures within a cell |
| Cell membrane/Plasma membrane | surrounding structure of the cell |
| Extracellular substance | Substances outside the cell |
| Intracellular substance | Substances inside the cell |
| Mosaic Model | studies molecules in the cell membrane |
| Nucleus | Control center of the cell |
| Nucleolus | The small center part on the Nucleus |
| Rough ER | It has ribosomes on it and transport things around the cell. |
| Smooth ER | does not have ribosomes and transport things around the cell |
| Golgi Apparatus | packages and distributes proteins around the cell |
| Lysosomes | gets rid of waste |
| Mitochondrion | Produces energy |
| Microtubules | provide support to the cytoplasm |
| Cilia | short tiny hair like structure |
| Flagella | long hair like structure |
| Microvilli | Increase surface area |
| Ribosomes | Where proteins are produced |
| Cytoskeleton | gives structure to the cell |
| 4 ways molecules can pass through a cell membrane | • 1. Directly through • 2. Membrane channels • 3. Carrier molecules • 4. Vesicles |
| solution | Solid, liquid, or gas consisted of one or more substances (Kool Aid) |
| solutes | substance that is dissovled (kool aid mix) |
| Solvent | the substance that does the dissolving (water) |
| Diffusion | going from a area of high concentration to an area of low concentration ( perfume) |
| concentration gradient | Is a membrane of the difference in the concentration of solute in a solvent. |
| Osmosis | water going from high to low concentration |
| Osmotic pressure | prevents movement and more molecules taking up space higher concentration on the left |
| Hypotonic | high concentration of the solute inside the cell. (cell swells) |
| Isotonic | equal of substances on each side of the cell |
| Hypertonic | high concentration of water inside the cell (cell shrinks) |
| Facilitated Diffusion | Larger Molecules use Carrier Protein to help them pass through the cell membrane. |
| active transport | requires energy, low to high concentration |
| Sodium potassium exchange pump | Pump used to move sodium and Potassium ions from areas of low concentration to high concentration. |
| Endocytosis | material coming into cell membrane through veticles,entering |
| Exocytosis | elmination of material from cell through vesicles, leaving |
| Glycolysis | Anaerobic process during one glucose molecule is converted to two pyruvic acid molecules |
| Aerobic Respiration | oxygen is present |
| Anerobic respiration | oxygen is not present |
Created by:
msiegfried
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