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15 Cards in this Set

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enzymes
protiens that assist the chemical reaction of metabolism
amino acids
biulding blocks of protiens, there are 20 different kinds of amino acids that humans use
polypeptides
long chains of amino acids
nucleic acids
the fourth group of macromolecules found in living things
nucleotides
small repeating subunits
RNA
ribonucleic acid
plays a veriety of roles in the process of making protiens
ATP
enosine triphosphate
energy currency of a cell
magnification
the ability of a microscope to make an image appear larger
resolution
the ability to distinguish small close objects
light microscope
a beam of light passes through one or more lenses to produce an enlarged image of the object or speciman being viewed
TEM
transmission electron microscope
produces a stream of electrons that passes through a specimen and strikes a floresent screen
SEM
scanning electron microscope
enables biologists to see a detailed three dementional image of a cell surface
STM
Scanning Tunneling Microscope
uses a needle like probe to measure differences in voltage do to electrons leaking or tunneling out of the surface of the object being viewed
ER
endoplasmic reticulum
extensive system of internal membranes
Goigi apparatus
the packeging and distributing center of the cell.