NSG 5003 Advanced Pathophysiology (South University) Questions and Correct Answers the Latest Update and Recommended Version
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Course
NSG 5003
Institution
NSG 5003
Differentiation
(maturation) process in which cells become specialized in structure and function
The eight specialized cellular functions are
movement, conductivity, metabolic absorption, secretion, excretion, respiration,
reproduction, communication
Eukaryotic cells
Contain a nucleus and...
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✓ It's function is to protect the cell and control what goes in and out. It is not a solid
structure. It is made of millions of smaller molecules so it is flexible and porous (allows
things to pass through it).
cellular receptors
✓ protein molecules on the plasma membrane, in the cytoplasm, or in the nucleus that can
recognize and bind with specific smaller molecules called ligands
Ligands
✓ A molecule that binds specifically to a receptor site of another molecule.
Cells are held together by three different means:
✓ (1) the extracellular membrane, (2) cell adhesion molecules in the cell's plasma
membrane, and (3) specialized cell junctions.
Cells communicate in three main ways
✓ (1) they form protein channels (gap junctions); (2)
✓ they display receptors that affect intracellular processes or other cells in direct physical
✓ contact; and (3) they use receptor proteins inside the target cell.
reception
✓ The target cell's detection of a signal molecule coming from outside the cell.
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