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Run Number 1 1 2 2 3 3 4 4 5 5 6 6 Solute Na Ch Glucose Na Ch Glucose Na* Ch Glucose Na Ch Glucose Na Ch Glucose Na Ch Glucose Start Conc. L Start Conc. R (mm) (mm) 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 10.00 0.00 2.00 0.00 2.00 0.00 Carriers 500 500 500 500 700 700 700 700 100 100 700 700 Rate (mm/sec) 0.0000 0.0008 0.0000 0.0023 0.0000 0.0010 0.0000 0.0031 0.0000 0.0017 0.0042 0.0010 There was no Na Cl- added with 10mM of glucose; sodium is required for transport by the glucose carrier protein O There were fewer carrier proteins used with 10mM of glucose, so they reached saturation and transport slowed O The glucose carrier protein transports against a concentration gradient, so transport will be slower with a larger concentration gradient. There was not ATP added with 10mM of glucose; ATP is required for transport by the glucose carrier protein

Run Number 1 1 2 2 3 3 4 4 5 5 6 6 Solute Na Ch Glucose Na Ch Glucose Na* Ch Glucose Na Ch Glucose Na Ch Glucose Na Ch Glucose Start Conc. L Start Conc. R (mm) (mm) 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 10.00 0.00 2.00 0.00 2.00 0.00 Carriers 500 500 500 500 700 700 700 700 100 100 700 700 Rate (mm/sec) 0.0000 0.0008 0.0000 0.0023 0.0000 0.0010 0.0000 0.0031 0.0000 0.0017 0.0042 0.0010 There was no Na Cl- added with 10mM of glucose; sodium is required for transport by the glucose carrier protein O There were fewer carrier proteins used with 10mM of glucose, so they reached saturation and transport slowed O The glucose carrier protein transports against a concentration gradient, so transport will be slower with a larger concentration gradient. There was not ATP added with 10mM of glucose; ATP is required for transport by the glucose carrier protein

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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The following table shows experimental results of the glucose transport rate, mM/sec, following facilitated diffusion by glucose carrier proteins. (Recall: the starting conc. L represents glucose added to one side of the membrane; distilled water, omM of glucose was added to the other side of the membrane). The rate of glucose transport was 0.0031 mm/sec with 8mM of glucose (run number 4, highlighted); the rate decreased to 0.0017 mM/sec with 10mM of glucose (run 5, highlighted). Why was the rate of glucose transport slower when the concentration gradient was increased? Experiment Results Run Number Solute 1 1 2 2 3 33 4 4 5 6 6 Na Ch Glucose Na Ch Glucose Na Ch Glucose Nat Ch Glucose Na Ch Glucose Nat Cl Glucose Start Conc. L Start Conc. R (MM) (mM) 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 10.00 0.00 2.00 0.00 2.00 0.00 Carriers 500 500 500 500 700 700 700 700 100 100 700 700 Rate (mm/sec) 0.0000 0.0008 0.0000 0.0023 0.0000 0.0010 0.0000 0.0031 0.0000 0.0017 0.0042 0.0010 There was no NaCl- added with 10mM of glucose; sodium is required for transport by the glucose carrier protein There were fewer carrier proteins used with 10mM of glucose, so they reached saturation and transport slowed The glucose carrier protein transports against a concentration gradient, so transport will be slower with a larger concentration gradient. There was not ATP added with 10mM of glucose; ATP is required for transport by the glucose carrier protein
Transcribed Image Text:The following table shows experimental results of the glucose transport rate, mM/sec, following facilitated diffusion by glucose carrier proteins. (Recall: the starting conc. L represents glucose added to one side of the membrane; distilled water, omM of glucose was added to the other side of the membrane). The rate of glucose transport was 0.0031 mm/sec with 8mM of glucose (run number 4, highlighted); the rate decreased to 0.0017 mM/sec with 10mM of glucose (run 5, highlighted). Why was the rate of glucose transport slower when the concentration gradient was increased? Experiment Results Run Number Solute 1 1 2 2 3 33 4 4 5 6 6 Na Ch Glucose Na Ch Glucose Na Ch Glucose Nat Ch Glucose Na Ch Glucose Nat Cl Glucose Start Conc. L Start Conc. R (MM) (mM) 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 10.00 0.00 2.00 0.00 2.00 0.00 Carriers 500 500 500 500 700 700 700 700 100 100 700 700 Rate (mm/sec) 0.0000 0.0008 0.0000 0.0023 0.0000 0.0010 0.0000 0.0031 0.0000 0.0017 0.0042 0.0010 There was no NaCl- added with 10mM of glucose; sodium is required for transport by the glucose carrier protein There were fewer carrier proteins used with 10mM of glucose, so they reached saturation and transport slowed The glucose carrier protein transports against a concentration gradient, so transport will be slower with a larger concentration gradient. There was not ATP added with 10mM of glucose; ATP is required for transport by the glucose carrier protein
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