bio Flashcards
cytoplasm
jelly like material that organelles float in.
nucleus’s
contains DNA. surrounded by nuclear membrane.
nucleolus
inside nucleus, where ribosomes are assembled.
ribosomes
where proteins are assembled
endoplasmic reticulum
(smooth or rough) where lipids, protein + other materials are made + exported by a VESICLE
golgi apparatus
finishing touch on proteins and other materials before shipped out of cell
lysosomes
filled with enzymes to break down waste (clean up)
vacuoles
store materials - water, salt, proteins carbohydrates
chloroplast
changes sunlight into chem energy (sugar) ONLY IN PLANTS
cytoskeleton
frame work in cell made of microtoboles channels to move stuff around (net)
centrioles
found only in animal cells, and in cell division
cell wall
found only in plants made of cellulose, gives support.
diffusion
particles move from area of high concentration to love concentration
osmosis
diffusion of H20 through a selectively permeable membrane
isotonic
solution are same inside + out
hypertonic
solutes higher outside of cell
hypotonic
solules lower outside of cell
facilitated diffusion
use proteins in cell membrane
passive
doesn’t require energy glucose moves from higher concentration to lower concentration through protein channels
active transport
does require energy for protein = ATP to move particles against concentration gradient lower concentration to higher concentration
endocytosis
taking in large clumps of material by infolding of cell membrane.
phagocytosis
cell eating
pinocytosis
cell drinking
exocytosis
releasing large amount of material from cell. vacuole fuses with cell membrane forcing contents out.
cell membrane
regulates what enters and leaves the cell. made of lipid bi-layer w/ proteins embedded in it.
