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40 Cards in this Set

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