ch7 biology notes
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| Organelle DNA ? | found in chloroplast & mitochondria, its essential for normal function of these organelles
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| the cell membrane is sometimes known as..? | lipid bilayer
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| Cell membrane? | flexible barrier
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| chloroplast? | contain chlorophyll to preform photosynthesis
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| mitochondria? | power house of the cell
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| example of active transport? | edocytosis, phagocytosis, exocytosis, pinocytosis
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| active transport? | DOES require energy bc it involves movement from area of low concentration to an area of high concentration against the concentration grading
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| aquaporins are a type of ...? | facilitated diffusion
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| aquaporins | special water channel protiens that allow water into the cell
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| diffusion | the movement of molecules across a membrane from high to low concentration
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| osmosis | diffusion of water across a selectively permeable membrane/ will continue until equaliblium is reached
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| hypotonic solution | concentration higher in cell ( water moves out, cell shrinks )
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| isotonic solution | equalibrium is achieved
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| facilitated diffusion | some molicules must pass through the membrane using protien channels
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| example of eurokaryotes? | fungi, protist, plant/animal cells
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| example of prokaryotes? | bacteria
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| eurkaryotes | larger, more complex cells, contain a nucleus & membrane bound organelle
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| prokaryotes | small, simple cells that lack nucleus & membrane bound organelles
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| in 1855, Rudoff Virchow said..? | " where a cell exist, there must have been a pre-existing cell "
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| in 1839, Theodore Schwann said ..? | " all animals are made of cells "
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| In 18_ _, who said " all plants are made of cells " | Mathia Schleiden, 1838
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| new cells are produced from...? | pre-existing cells
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| _____ are the basic unit of structure & function in living things | cells
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| all living things are composed of...? | cells
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| in _____, who used a simple microscope to look at a thin slice of cork? | 1665, Robert Hooke
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| who invented the single lens microscope & when? | Anton Van Leevenhook, 1600s
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| golgi apparatus | uses enzymes to attach carbohydrates & lipids to protiens
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| smooth ER? | without rybosomes
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| rough ER? | covered with ribosomes
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| endoplasmic reticulum ? | cell membrane componets are assembled & some protiens are modified
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| ribosomes? | protien syntheis
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| cytoskeleton? | supports
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| lysosomes? | clean up & contain digestive enzymes
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| vaccuoles & vesticles? | storage of water, salts, protien, and carbs
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| chromosomes? | condensed chromaton contains genetic info visible when cells divide
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| chromaton? | DNA bound to protien within the nucleus
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| organelle? | " tiny organs "
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| cytoplasm? | jelly-like, all organelles are suspended within
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| nucleus? | control center, identified by Robert Hooke in 1831
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| nucleolus? | inside nucleus functions in the making of ribosomes
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