FIGURE 12-1 
What is pictured in Figure 12-1 above?
Definitions:
Eukaryotic Cells
Cells that contain a nucleus enclosed within membranes, distinguishing them from prokaryotic cells. They make up all complex organisms, including humans, plants, and fungi.
Nucleus
(1) The central region of an atom that contains the protons and neutrons. (2) A cell organelle in eukaryotes that contains the DNA and serves as the control center of the cell. (3) A mass of nerve cell bodies in the central nervous system. Compare with ganglion.
Membrane-Enclosed Organelles
Structures within eukaryotic cells that are surrounded by a lipid bilayer membrane, each performing distinct functions vital to the cell’s operation.
Neurotransmitters
Chemical signals used by neurons to transmit impulses across a synapse.
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