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INP 3470 - Physiology Exam 2 Study Guide - Study Guide

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INP 3470 - Physiology Exam 2 Study Guide - Study Guide

School: University of Colorado at Boulder
Department: Physiology
Course: Human Physiology 1
Professor: Christopher Desouza
Term: Fall 2016
Tags:
Name: Physiology Exam 2 Study Guide
Description: All exam 2 material and all chalk talk material
Uploaded: 11/04/2016
0 5 3 83 Reviews
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background image IPHY 3470: Exam 2 Study Guide CELL SIGNALING Membrane Transporters •  Gated channels or open channels o  But can’t be open on both sides •  Different kinds of carriers: Uniport = 1 molecule in 1 direction (in or out) Symport = 2 molecules in 1 direction Antiport = 2 molecules in opposite directions (one coming in, one going out) Diffusion •  Passive process
•  High to low concentration
•  New movement until concentration is equal
•  Rapid over short distances
•  Directly related to temp
•  Inversely related to molecular size
•  In open system or across a partition
GLUT Family 1.  Glut 1 : glucose & hexoses – most tissues of body (always cell membrane) 2.  Glut 2: glucose & hexoses – liver, kidney, intestine
3.  Glut 3: glucose & hexoses – neurons
4. 
Glut 4 : glucose only – skeletal muscle, adipose tissue (intracellular vesicles) 5.  Glut 5: fructose – intestinal epithelium Glucose Transport •  THE rate limiting step in glucose utilization •  Transporters = non insulin (Glut 1) & insulin mediated (Glut 4)
•  Resting muscle enters Glut 1 transporters in plasma membrane
•  Exercise stimulated glucose uptake through Glut 4’s; majority
stored in intracellular vesicles o  Contraction has “insulin like” effect of glucose uptake into muscle o  Can increase Glut 4 with training Receptor Locations •  In cytosol or nucleus = lipophilic

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School: University of Colorado at Boulder
Department: Physiology
Course: Human Physiology 1
Professor: Christopher Desouza
Term: Fall 2016
Tags:
Name: Physiology Exam 2 Study Guide
Description: All exam 2 material and all chalk talk material
Uploaded: 11/04/2016
9 Pages 43 Views 34 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
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