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human bio chapter 3


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