29 Questions
Which of the following is NOT a hormone secreted by the endocrine pancreas?
Amylase
Which cells in the islets of Langerhans secrete insulin and amylin?
B cells
Which hormone is responsible for mobilizing glycogen, fat, and protein as energy sources?
Glucagon
Which organ is the major target of glucagon?
Liver
Which hormone inhibits glucagon secretion?
Insulin
What is the normal fasting plasma glucose concentration?
70-99 mg/dl
Which type of diabetes is characterized by insulin deficiency?
Type I
Which organ catabolizes 50% of the secreted insulin on its first pass?
Liver
What is the half-life of insulin?
3-5 minutes
Which hormone stimulates insulin secretion?
Glucagon-like peptide1 (GLP-1)
Which of the following is a cause of hypoglycemia?
Alcohol intake
Which of the following is a clinical manifestation of hyperglycemia?
Polyuria and polydipsia
Which hormone increases plasma glucose levels by stimulating glycogenolysis and inhibiting insulin secretion?
Catecholamines
What is the hormonal response to hypoglycemia that may slow mental processes, cause confusion, and coma?
Insulin
Which hormone is responsible for mobilizing glycogen, fat, and protein as energy sources?
Glucagon
Which hormone inhibits secretion of pancreatic hormones?
Somatostatin
Which cells in the islets of Langerhans secrete insulin and amylin?
B (β) cells
Which hormone is responsible for increasing plasma levels of glucose and free fatty acids, while decreasing amino acid levels?
Glucagon
What is the major signal for the release of glucagon?
Low plasma glucose levels
Which hormone inhibits glucagon secretion?
Somatostatin
What is the normal fasting plasma glucose concentration?
70-99 mg/dl
Which of the following is NOT a cause of hypoglycemia?
Liver, kidney, or heart disorders
Which of the following is NOT a clinical manifestation of hyperglycemia?
Palpitation
Which hormone is responsible for mobilizing glycogen, fat, and protein as energy sources?
Epinephrine
What is the normal fasting plasma glucose concentration?
70-100 mg/dL
Which of the following is true about C-peptide?
C-peptide is released in equimolar amounts with insulin
Which of the following is a function of C-peptide?
Reducing glomerular hyperfiltration
Which of the following is a stimulator of insulin secretion?
Glucagon-like peptide 1 (GLP-1)
Which of the following is true about insulin receptors?
Insulin receptors activate insulin-receptor substrate
Test your knowledge on glucagon, a hormone involved in regulating glucose levels in the body. Learn about its structure, function, target organs, and its role in various metabolic processes.
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