Glucose Transport Quiz
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Glucose Transport Quiz

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Questions and Answers

The homeostatic regulation of plasma glucose levels is primarily influenced by ______.

insulin/glucagon ratio

In patients with low insulin effect (diabetes), the mechanism of hyperglycemia is ______.

low glucose uptake by skeletal muscle and fat cells and high hepatic glucose output

Insulin receptors exist in ______.

skeletal and cardiac muscle and fat cells

Insulin mediates glucose transport through ______.

<p>GLUT4</p> Signup and view all the answers

GLUT4-mediated insulin-dependent glucose uptake occurs in ______.

<p>all tissues</p> Signup and view all the answers

The calorigenic effect and glycogenolysis are stimulated by ______.

<p>glucocorticoids</p> Signup and view all the answers

Catecholamines increase the plasma glucose level by stimulating ______.

<p>glycogenolysis in the liver and in the muscle</p> Signup and view all the answers

Exercise increases skeletal muscle glucose uptake through ______ by an insulin-independent mechanism.

<p>GLUT4</p> Signup and view all the answers

Activation of sympathetic nervous system

<p>What is the most immediate hormonal response to low blood glucose levels?</p> Signup and view all the answers

Increased plasma epinephrine levels

<p>What is the most immediate hormonal response to low blood glucose levels?</p> Signup and view all the answers

Increased glucagon secretion

<p>What is the most immediate hormonal response to low blood glucose levels?</p> Signup and view all the answers

Decreased insulin secretion

<p>What is the most immediate hormonal response to low blood glucose levels?</p> Signup and view all the answers

Increased cortisol secretion

<p>What is the most immediate hormonal response to low blood glucose levels?</p> Signup and view all the answers

Glucose

<p>Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?</p> Signup and view all the answers

Insulin

<p>Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?</p> Signup and view all the answers

Epinephrine

<p>Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?</p> Signup and view all the answers

Glucagon

<p>Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?</p> Signup and view all the answers

Insulin/glucagon ratio

<p>Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?</p> Signup and view all the answers

low glucose uptake by skeletal muscle and fat cells

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

low glucose uptake by the liver

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

low urinary glucose excretion

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

low hepatic glucose output

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

high hepatic glucose uptake

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

low glucose uptake by skeletal muscle and fat cells and high hepatic glucose uptake

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

low glucose uptake by skeletal muscle and fat cells and high hepatic glucose output

<p>What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?</p> Signup and view all the answers

Insulin level

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

Insulin

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

Insulin levels

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

secretion is inhibited by high plasma glucose

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

secretion is stimulated by glucagon

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

secretion is directly stimulated by somatostatin

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

secretion is stimulated by low plasma amino acid

<p>Which of the following is true regarding regulation of insulin secretion?</p> Signup and view all the answers

True

<p>Insulin receptors exist only in the skeletal and cardiac muscle and fat cells.</p> Signup and view all the answers

False

<p>Insulin receptors exist only in the skeletal and cardiac muscle and fat cells.</p> Signup and view all the answers

GLUT1

<p>Insulin mediates glucose transport through:</p> Signup and view all the answers

GLUT4

<p>Insulin mediates glucose transport through:</p> Signup and view all the answers

GLUT1 and GLUT4

<p>Insulin mediates glucose transport through:</p> Signup and view all the answers

GLUT2 (in the liver) and GLUT4

<p>Insulin mediates glucose transport through:</p> Signup and view all the answers

SGLUT2

<p>Insulin mediates glucose transport through:</p> Signup and view all the answers

All tissues

<p>GLUT4-mediated insulin-dependent glucose uptake occurs in:</p> Signup and view all the answers

Liver

<p>GLUT4-mediated insulin-dependent glucose uptake occurs in:</p> Signup and view all the answers

Small intestine

<p>GLUT4-mediated insulin-dependent glucose uptake occurs in:</p> Signup and view all the answers

Cardiac muscle

<p>GLUT4-mediated insulin-dependent glucose uptake occurs in:</p> Signup and view all the answers

Kidney

<p>GLUT4-mediated insulin-dependent glucose uptake occurs in:</p> Signup and view all the answers

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