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UA - PHYI 201 - Study Guide

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UA - PHYI 201 - Study Guide

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background image Physiology 201 Exam 1 Study Guide  Anatomy- study of body structure  Physiology- study of body functions  Metabolism- sum of all chemical processes that occur in the body  Catabolism- breaking down molecules  Anabolism- building up molecules  Five characteristics of living things: 1. Metabolism (chemical processes in body), 2. 
Responsiveness (ability to respond to environment), 3. Movement (Ability to move or move an 
organ, cell, or cell component), 4. Growth and differentiation (Growing in size or adding more 
cells), 5. Reproduction (New cells/individuals) 
Levels of Structural Organization: 1. Chemical, 2. Cellular, 3. Tissue, 4. Organ, 5. Organ 
System, 6. Organismic 
Five Steps of Scientific Method: 1. Observation, 2. Hypothesis, 3. Experimental Testing, 4. 
Analysis and Conclusion, 5. Development of New Hypothesis 
Negative Feedback Loops- Maintenance of homeostasis through the stopping of a process (ex. 
blood sugar), most abundant type of feedback loop in body 
Positive Feedback Loops- Maintenance of homeostasis through the intensifying of a process  Steady State- Constant state maintained through time  Equilibrium- Constant state achieved without energy expenditure  Homeostasis- Condition in which the body’s internal environment remains relatively constant  Cell Theory- 1. Cells are building blocks, 2. Cells arise from pre-existing cells, 3. Cells are the 
smallest living units, 4. Homeostasis of more highly organized systems arises from coordinated 
activity of cells 
Plasma membrane- interaction surface between cell and outside world  Nucleus- contains genetic material of cell  Cytoplasm- everything between membrane and nucleus  Membranous organelles: Endoplasmic reticulum, nucleus, mitochondria  Non-membranous organelles: cytoskeleton, ribosomes  Amphipathic- a molecule that contains both a polar and non-polar region  Integral proteins- extend all the way across a lipid bilayer, are amphipathic  Peripheral proteins- attached either to inner or outer surface of bilayer 

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School: University of Arizona
Department: Physiology
Course: Human Anatomy and Physiology I
Professor: Stanescu
Term: Spring 2016
Tags: Physiology Anatomy
Name: Physiology 201 Exam 1 Study Guide
Description: These are some key terms to know for the first exam
Uploaded: 02/03/2016
2 Pages 41 Views 32 Unlocks
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