The Glucagon Quiz

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Questions and Answers

Which of the following is NOT a hormone secreted by the endocrine pancreas?

  • Amylase (correct)
  • Somatostatin
  • Insulin
  • Glucagon

Which cells in the islets of Langerhans secrete insulin and amylin?

  • A cells
  • D cells
  • G cells
  • B cells (correct)

Which hormone is responsible for mobilizing glycogen, fat, and protein as energy sources?

  • Insulin
  • Somatostatin
  • Amylin
  • Glucagon (correct)

Which organ is the major target of glucagon?

<p>Liver (D)</p> Signup and view all the answers

Which hormone inhibits glucagon secretion?

<p>Insulin (B)</p> Signup and view all the answers

What is the normal fasting plasma glucose concentration?

<p>70-99 mg/dl (A)</p> Signup and view all the answers

Which type of diabetes is characterized by insulin deficiency?

<p>Type I (C)</p> Signup and view all the answers

Which organ catabolizes 50% of the secreted insulin on its first pass?

<p>Liver (C)</p> Signup and view all the answers

What is the half-life of insulin?

<p>3-5 minutes (D)</p> Signup and view all the answers

Which hormone stimulates insulin secretion?

<p>Glucagon-like peptide1 (GLP-1) (C)</p> Signup and view all the answers

Which of the following is a cause of hypoglycemia?

<p>Alcohol intake (A)</p> Signup and view all the answers

Which of the following is a clinical manifestation of hyperglycemia?

<p>Polyuria and polydipsia (C)</p> Signup and view all the answers

Which hormone increases plasma glucose levels by stimulating glycogenolysis and inhibiting insulin secretion?

<p>Catecholamines (A)</p> Signup and view all the answers

What is the hormonal response to hypoglycemia that may slow mental processes, cause confusion, and coma?

<p>Insulin (D)</p> Signup and view all the answers

Which hormone is responsible for mobilizing glycogen, fat, and protein as energy sources?

<p>Glucagon (A)</p> Signup and view all the answers

Which hormone inhibits secretion of pancreatic hormones?

<p>Somatostatin (D)</p> Signup and view all the answers

Which cells in the islets of Langerhans secrete insulin and amylin?

<p>B (β) cells (A)</p> Signup and view all the answers

Which hormone is responsible for increasing plasma levels of glucose and free fatty acids, while decreasing amino acid levels?

<p>Glucagon (D)</p> Signup and view all the answers

What is the major signal for the release of glucagon?

<p>Low plasma glucose levels (A)</p> Signup and view all the answers

Which hormone inhibits glucagon secretion?

<p>Somatostatin (C)</p> Signup and view all the answers

What is the normal fasting plasma glucose concentration?

<p>70-99 mg/dl (B)</p> Signup and view all the answers

Which of the following is NOT a cause of hypoglycemia?

<p>Liver, kidney, or heart disorders (A)</p> Signup and view all the answers

Which of the following is NOT a clinical manifestation of hyperglycemia?

<p>Palpitation (A)</p> Signup and view all the answers

Which hormone is responsible for mobilizing glycogen, fat, and protein as energy sources?

<p>Epinephrine (B)</p> Signup and view all the answers

What is the normal fasting plasma glucose concentration?

<p>70-100 mg/dL (D)</p> Signup and view all the answers

Which of the following is true about C-peptide?

<p>C-peptide is released in equimolar amounts with insulin (C)</p> Signup and view all the answers

Which of the following is a function of C-peptide?

<p>Reducing glomerular hyperfiltration (A)</p> Signup and view all the answers

Which of the following is a stimulator of insulin secretion?

<p>Glucagon-like peptide 1 (GLP-1) (B)</p> Signup and view all the answers

Which of the following is true about insulin receptors?

<p>Insulin receptors activate insulin-receptor substrate (D)</p> Signup and view all the answers

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