Campbell Biology Chapter 6 New Update 100% Verified
light microscopes - ANSWER microscopes where light passes through the specimen
and then through glass lenses.
magnification - ANSWER ratio of an objects real size to the projected size
resolution - ANSWER measure of clarity of the image
contrast - ANSWER difference in brightness between the light and dark areas of the
image
organelles - ANSWER membrane enclosed structure in eukaryotic cells
electron microscope - ANSWER focuses a beam of electrons through the specimen or
onto its surface
scanning electron microscope - ANSWER useful for detail study of the topography of a
specimen
three-dimensional
transmission electron microscope - ANSWER used to study the internal structure of
cells
cytology - ANSWER study of cell structure
biochemistry - ANSWER study of the chemical process of cells
, cell fractionation - ANSWER takes cells apart and separate major organelles and other
sub-cellular structures from one another to study them
centrifuge - ANSWER used for cell fractionation
spins test tubes holding mixtures of disrupted cells at a series of increasing speeds
makes pellets of components of a cell
plasma membrane - ANSWER bounding of a cell by a selective barrier
allows passage of enough oxygen. nutrients, and wastes to services the entire cell
cytosol - ANSWER semi-fluid jelly-like substance where subcellular components are
suspended
chromosomes - ANSWER carry genes in the form of DNA
ribosomes - ANSWER tiny complexes that make proteins according to instructions
from the genes
complexes made of ribosomal RNA and proteins
cellular components that carry out protein synthesis
NOT membrane bound
NOT considered organelles
eukaryotic cell - ANSWER most of the DNA is stored in the nucleus
prokaryotic cell - ANSWER DNA is concentrated in a region not membrane enclosed
called the nucleotide
nucleotide - ANSWER prokaryotic cells
region where DNA is stored w/o a membrane
light microscopes - ANSWER microscopes where light passes through the specimen
and then through glass lenses.
magnification - ANSWER ratio of an objects real size to the projected size
resolution - ANSWER measure of clarity of the image
contrast - ANSWER difference in brightness between the light and dark areas of the
image
organelles - ANSWER membrane enclosed structure in eukaryotic cells
electron microscope - ANSWER focuses a beam of electrons through the specimen or
onto its surface
scanning electron microscope - ANSWER useful for detail study of the topography of a
specimen
three-dimensional
transmission electron microscope - ANSWER used to study the internal structure of
cells
cytology - ANSWER study of cell structure
biochemistry - ANSWER study of the chemical process of cells
, cell fractionation - ANSWER takes cells apart and separate major organelles and other
sub-cellular structures from one another to study them
centrifuge - ANSWER used for cell fractionation
spins test tubes holding mixtures of disrupted cells at a series of increasing speeds
makes pellets of components of a cell
plasma membrane - ANSWER bounding of a cell by a selective barrier
allows passage of enough oxygen. nutrients, and wastes to services the entire cell
cytosol - ANSWER semi-fluid jelly-like substance where subcellular components are
suspended
chromosomes - ANSWER carry genes in the form of DNA
ribosomes - ANSWER tiny complexes that make proteins according to instructions
from the genes
complexes made of ribosomal RNA and proteins
cellular components that carry out protein synthesis
NOT membrane bound
NOT considered organelles
eukaryotic cell - ANSWER most of the DNA is stored in the nucleus
prokaryotic cell - ANSWER DNA is concentrated in a region not membrane enclosed
called the nucleotide
nucleotide - ANSWER prokaryotic cells
region where DNA is stored w/o a membrane
