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40 Cards in this Set
- Front
- Back
ribosome factories stuck on cell
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rough endoplasmic reticulum
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moves fat around
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smooth endoplasmic reticulum
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makes packaging to move things in and out
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golgi apparatus
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membranes left over from the fixation process
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mesosomes
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not membrane bound, and is coiled chromosomal
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nucleoid
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not membrane bound, and is protein production,
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ribosomes
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maintains shape of cell composed of peptidoglycan
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cell wall
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layer of polysaccharides lying outisde cell wall
-capsule -slime layer |
glycocalyx
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extra chromosomal pieces of circular DNA (enough to carry 1 or 2 traits)
-biotechnology |
plasmid
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important in identification (location/number)
-filament -basal body -hook |
flagella
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small bristle-like fibers that sprout from cell surface (for attachment)
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fimbriae
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used in exchange of plasmids and other chromosomal materials (passes DNA material)
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sex pili
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produced by bacterial in large numbers, gives protection, and increases resistance to detergents and antibiotics
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biofilm
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bacterias 3 different shapes
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-rod
-coccus -spirillium or spirochete |
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eubacteria only; photosyntheis contains thakaliods and has chlorophyll
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cyanobacteria
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involved in passage of molecules through membrane
-have a channel; allows free-flow across membrane -like a tunnel -uses diffusion |
channel proteins
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selectively interacts with a specific molecule or ion to help move it across membrane
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carrier proteins
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helps organisms recognize invasion; start immune response
-glycoproteins different for each person; making organ transplants hard to achieve |
cell recognition proteins
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shaped in such a way that a specific molecule can bind to it
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receptor protein
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catalyze specific reactions
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enzymatic proteins
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membrane assisted transport; requires expenditure of cellular energy
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vesicle formation
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vesicle formation that is a form of transport used by cells to move molecules, particles, and other substances contained in vesicles across the plasma membrane and into the outside enviornment
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exocytosis
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vesicle formation which eukaryotic cells absorb outside material by inverting the plasma membrane to form vesiclesthat encase the material
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endocytosis
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types of endocytosis
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-phagocytosis
-pinocytosis -receptor mediated endocytosis |
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process by which phagocytes ingest large particles of matter
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phagocytosis
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process by which phagocytes ingest small particles of matter
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pinocytosis
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if the body gives a signal, it will ingest particles
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receptor mediated endocytosis
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hardy-weinberg principle conditions
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-population size is large
-random mating is occurring -no mutation -no genes are introduced or lost -no selection occurs |
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-thought organisms acquired traits by using their bodies in new ways
-new characteristics passed to offspring -doesn't take genetics into account |
theory of acquired characteristics
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individuals with favored characteristics are breed
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selective breeding or artificial selection
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-structures that have different mature forms but develop from the same embryonic tissue
-count de buffon |
Homologous Body Structures
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-light passes through specimen
-focuses by two glass lenses -resolution up to around 1000X compared to the naked eye |
compound microscope
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-electrons pass through specimen
-focused by magnetic lenses -image formed on fluorescent screen -resolves objects 100,000X than the human eye |
electron microscopy
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-bacteria and archaea
-no membrane bound organelles -DNA in nucleoid region -smaller |
prokaryotic
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-protists, plants, fungi, animals
-more complex -membrane bound organelles -DNA in nucleus |
eukaryotic
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small naked strands of RNA seen in plants
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viroids
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obtained by eating neural tissue of same species, fatal neurodegenerative disorder
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prions
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noncellular, have DNA and RNA, only reproduce with "host" machinery,
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virus
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lower solute concentration so the cells swell and burst
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hypotonic
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higher solute concentration, so the cells lose water and break
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hypertonic
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