44 Questions
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 ______.
GLUT4
GLUT4-mediated insulin-dependent glucose uptake occurs in ______.
all tissues
The calorigenic effect and glycogenolysis are stimulated by ______.
glucocorticoids
Catecholamines increase the plasma glucose level by stimulating ______.
glycogenolysis in the liver and in the muscle
Exercise increases skeletal muscle glucose uptake through ______ by an insulin-independent mechanism.
GLUT4
Activation of sympathetic nervous system
What is the most immediate hormonal response to low blood glucose levels?
Increased plasma epinephrine levels
What is the most immediate hormonal response to low blood glucose levels?
Increased glucagon secretion
What is the most immediate hormonal response to low blood glucose levels?
Decreased insulin secretion
What is the most immediate hormonal response to low blood glucose levels?
Increased cortisol secretion
What is the most immediate hormonal response to low blood glucose levels?
Glucose
Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?
Insulin
Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?
Epinephrine
Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?
Glucagon
Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?
Insulin/glucagon ratio
Which of the following plasma values would best explain the homeostatic regulation of plasma glucose levels?
low glucose uptake by skeletal muscle and fat cells
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
low glucose uptake by the liver
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
low urinary glucose excretion
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
low hepatic glucose output
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
high hepatic glucose uptake
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
low glucose uptake by skeletal muscle and fat cells and high hepatic glucose uptake
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
low glucose uptake by skeletal muscle and fat cells and high hepatic glucose output
What is the mechanism of hyperglycemia in patients with low insulin effect (diabetes)?
Insulin level
Which of the following is true regarding regulation of insulin secretion?
Insulin
Which of the following is true regarding regulation of insulin secretion?
Insulin levels
Which of the following is true regarding regulation of insulin secretion?
secretion is inhibited by high plasma glucose
Which of the following is true regarding regulation of insulin secretion?
secretion is stimulated by glucagon
Which of the following is true regarding regulation of insulin secretion?
secretion is directly stimulated by somatostatin
Which of the following is true regarding regulation of insulin secretion?
secretion is stimulated by low plasma amino acid
Which of the following is true regarding regulation of insulin secretion?
True
Insulin receptors exist only in the skeletal and cardiac muscle and fat cells.
False
Insulin receptors exist only in the skeletal and cardiac muscle and fat cells.
GLUT1
Insulin mediates glucose transport through:
GLUT4
Insulin mediates glucose transport through:
GLUT1 and GLUT4
Insulin mediates glucose transport through:
GLUT2 (in the liver) and GLUT4
Insulin mediates glucose transport through:
SGLUT2
Insulin mediates glucose transport through:
All tissues
GLUT4-mediated insulin-dependent glucose uptake occurs in:
Liver
GLUT4-mediated insulin-dependent glucose uptake occurs in:
Small intestine
GLUT4-mediated insulin-dependent glucose uptake occurs in:
Cardiac muscle
GLUT4-mediated insulin-dependent glucose uptake occurs in:
Kidney
GLUT4-mediated insulin-dependent glucose uptake occurs in:
Test your knowledge on the cycling of GLUT 4 transporters and the different types of glucose transporters. This quiz covers topics such as insulin-stimulated glucose uptake in insulin-sensitive tissues and the characteristics of SGLUT 1 and SGLUT 2 transporters. Challenge yourself and see how much you know about glucose transport!
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