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NUR 2063 / NUR2063 Exam 1: Essentials of Pathophysiology Exam 1 Review (2022/2023) Rasmussen
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NUR2063 Essentials of Pathophysiology Exam 1 Review
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NUR2063 Exam 11. What is homeostasis?
- Maintaining a stable internal environment
2. Why do we have homeostasis?
- to keep the bodily systems from failing
3. What is adaptation?
- method by which cells attempt to prevent their own death from environmental
changes. They may modify their size, numbers, or types in an attempt to manage these
changes and maintain homeostasis.
4. What is resilience?
- the ability of a cell to cope with environmental changes
5. What is maladaptation?
- failure to adjust adequately or appropriately to the environment or situation.
6. What do ribosomes do?
- Synthesize protein with rough endoplasmic reticulum
7. What does the mitochondria do?
- Powerhouse of cell; synthesizes ATP
8. During aerobic metabolism, what kind of waste does the mitochondria produce?
, - CO2 & H20 as wastes, net 34 ATP molecules
9. During anaerobic metabolism, what kind of waste does the mitochondria produce?
- CO2 & lactic acid as wastes, net 2 ATP molecules
10. What do cell membrane receptors do?
- mediate signal transduction for cellular responses to extracellular stimuli
11. What kind of substances are allowed in and out of the cell membrane?
- small unchanged polar molecules & lipid-soluble substances
12. What kind of substances require transportation through the cell membrane?
- water soluble substances & ions
13. What is diffusion?
- Movement of solutes from higher concentration to lower concentration, will continue
until concentration gradient is equal on both sides
14. What is osmosis?
- a passive process that moves water or another solvent across cell membrane from
lower concentration to higher concentration
15. What is facilitated diffusion?
- Use of a carrier molecule
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