NUR 545 PHYSIO - PATHO
BASIS UNIT 1 EXAM 1 STUDY
QUESTIONS WITH ACCURATE
SOLUTIONS
, Study Guide Unit 1
NU 545
1. What is metabolic absorption? All cells take in and use
nutrients and other substances from their surroundings. Ex:
cells of the kidney tubules reabsorb fluids and synthesize
proteins pg 3
2. What uses oxygen to remove hydrogen atoms in an
oxidative reaction? Cellular respiration pg 3
3. During cell injury what is released that is capable of
cellular autodigestion? Autolysosomes or
autophagosomes pg 8
4. Where is the genetic info contained in the cell? The nucleus or
nucleolus pg 3
5. Cell membranes contain which major chemical components?
Lipids and proteins pg 12
6. What allows potassium to diffuse in and out of cells?
Process called active transport pg 28
7. How is the cell protected from injury? By the plasma membrane
pg 12
8. In cirrhosis, what does cholesterol have to do with the
erythrocytes?
9. What is platelet-derived growth factor? Pg 38
stimulates proliferation of connective tissue cells and
neurological cells
10. What is cell communication? How does it occur? Pg 19 A
way to maintain homeostasis; regulates growth and
division, development and organization of tissues, and to
coordinate their functions. Occurs in three main ways:
1. Receptors that affect the cell itself and other cells
in direct physical contact
2. Receptor proteins inside the target cell and signal
molecule has to enter the cell to bind with them
3. Form protein channels that directly coordinate the
activites of adjacent cells
11. What is chemical signaling? Pg 19
1. Paracrine signaling: cells secrete local chemical
mediators that are absorbed, destroyed, or
immobilized.
2. Autocrine signaling: signal that the cell itself
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