Rated A
light microscopy - -magnification of cellular nuclear envelope - -perforated double
structures up to 1000 X membrane that controls flow of materials (around
nucleus)
scanning electron microscopy (SEM) - -
image of 3D surface coated with heavy metal like ribosomes - -organelles made of protein
gold (100,000 X) and rRNA that direct protein synthesis (in
cytoplasm or tethered to rough ER)
transmission electron microscopy (TEM) - -
image of ultra thin slice to view intracellular nuclear lamina - -netlike array of
components (500,000 x) intermediate filaments that maintains shape of
nucleus
cell fractionation - -technique that breaks
cells and separates their components endoplasmic reticulum (ER) - -internal
membrane system in which components of cell
membrane and some proteins are constructed
cytosol - -aqueous part of cytoplasm within
which particles and organelles are suspended
rough ER - -organelle continuoues with
nuclear membrane, to which ribosomes are
nucleoid - -densly staining DNA region in a tethered and proteins are synthesized for export
prokaryotic cell
smooth ER - -organelle where lipids are
chromatin - -uncondensed DNA wrapped synthesized
around histones (used during transcription)
vesicles - -small sacs surrounded by
chromosome - -condensed chromatin phospholipid bilayer that specialize in moving
(used during cell division) products into, out of, and within a cell
nucleus - -organelle that contains DNA and golgi apparatus - -stack of membranes that
controls processes of cell modifies, sorts, and packages proteins for
transport
nucleolus - -organelle where ribosomes
are synthesized and partially assembled (within lysosome - -organelle filled with enzymes
nucleus) that break down chemicals
1/4