A Physiologist Is Conducting an Experiment to Study Potassium Channels

question 46

Multiple Choice

A physiologist is conducting an experiment to study potassium channels mutation expressed in pancreatic beta cells. The mutated channels have a higher sensitivity to the substance that normally modulates their activity, causing increased beta cell secretory activity.  Which of the following substances normally binds to and regulates the ion channels that are responsible for this patient's hypoglycemia?

• A)ATP
• B)Citrate
• C)Fructose-6-phosphate
• D)Fumarate
• E)Glucose
• F)Lactate
• G)Malate
• H)Pyruvate

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