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25 Cards in this Set

  • Front
  • Back
light passes through one or more lenses to produce an englarged image of a specimen
light microscope
forms an image of a specimen using a beam of electrons
electron microscope
the ability to make an image appear larger than its actual size
a measure of the clarity of an image
uses a needle-like probe to measure differences in voltage of electrons that leak, or tunnel, from the surface of the object being viewed
scanning tunneling microscope
1.all living things are made of one of more cells
2. cells are the basic units of all organisms
3. all cells arise from exsisting cells
cell theory
outer boundary of a cell
cell membrane
cell interior
microscopic fibers that structures are suspended in inside a cell
cellular structures on which proteins are made
single celled organism that lacks a nucleus and other internal compartments
prokaryotic cell
surrounds the cell membrane and provides structure and support
cell wall
long, threadlike structures that protrude from the cells surface and engages movement
organism whose cells have a nucleus
eukaryotic cell
internal component that houses the cells DNA
structure that carries out specific activites in a cell
short hairlike structures that protrude from eukaryotic cells; propel some cells through envoirnment
lipids made of phosphates group and two fatty acids; has a polar head and 2 nonpolar tails
a double layer that the phospholipids are arranged in
lipid bilayer
extensive system of internal membranes that move proteins and other substances through the cell
endoplasmic reticulum
small, membrane-bound sac that transports substances in cell
set of flattened, membrane-bound sacs that serves as the packaging and distrubution center of a cell
golgi apparatus
small, spherical organelles that contain the cells digestive enzymes
large, membrane-bound sac that stores water in a cell
central vacuole
organelle that harvest energy from organice compounds to make ATP, the main energy source of cells