The cell is... - ANSThe most basic unit of structure and function in the body
A cell is measured in - ANSMicrometers
Cells that have developed specialized characteristics are... - ANSDifferentiated
A composite cell shows the following components found in most cells... - ANSNucleus, cell
membrane, and cytoplasm
Cell membrane (plasma membrane) - ANSThe outer boundary of the cell, selectively
permeable, signal transduction
Selectively permiable - ANSRegulates entry and exit of substances
Signal transduction - ANSPermits cell to receive and respond to messages
Cell is made up of a - ANSPhospholipid bilayer, hydrophobic tails form interior, hydrophollic
heads form surface
Hydrophobic - ANSNOT water-soluble
Hydrophollic - ANSWater-soluble
Cytoplasm - ANSNetwork of membranes and organelles suspended in cytosol
Cytosol - ANSFluid portion of the cell
Organelles - ANSTiny solid structures in cytosol
Ribosome - ANSTiny spherical structures composed of DNA and protein. Provide structural
support and enzyme activity to link amino acids in protein synthesis
Rough Endoplasmic Reticulum (Rough ER) - ANSContains ribosomes
Smooth Endoplasmic Reticulum (Smooth ER) - ANSDoes NOT contain ribosomes.
Vesicles - ANSStore/transport substances. Larger _________ that contain mostly water form
when part of the cell membrane folds inward and pinches off, bringing material from outside the
cell membrane into the cytoplasm. Smaller _________ shuttle material from rough ER to golgi
apparatus