NEETZoologyChemical Coordination and Integration
Read the following list of hormones: (i) Glucagon (ii) Cortisol (iii) Epinephrine (iv) Insulin (v) Thyrocalcitonin (TCT) Which of the given hormones are considered hyperglycemic?
Options
- A(i), (iii) and (iv)
- B(i), (ii) and (iii)
- C(i) and (iii) only
- D(ii), (iii) and (v)
Correct answer
B. (i), (ii) and (iii)
Step-by-step solution
Glucagon acts mainly on hepatocytes and stimulates glycogenolysis and gluconeogenesis, leading to hyperglycemia. Cortisol stimulates gluconeogenesis, lipolysis and proteolysis, which also increases blood glucose levels (hyperglycemic effect). Epinephrine stimulates the breakdown of glycogen resulting in an increased concentration of glucose in the blood (hyperglycemia). Insulin is a hypoglycemic hormone as it enhances cellular glucose uptake and utilisation. Thyrocalcitonin (TCT) regulates blood calcium levels, not