Question

The hormone 'X' increases glucose levels in blood. Low levels of other hormone 'Y' causes lethargyness. What are X, Y respectively?

• A. Glucagon, thyroxine
• B. Insulin, epinephrine
• C. Glucagon, estradiol
• D. Insulin, thyroxine

Hint:

Glucagon raises blood sugar; insulin lowers it. Thyroxine deficiency causes lethargy (hypothyroidism). Know hormone functions: epinephrine for stress, estradiol for reproduction.

Answer 1

The Correct Option is A

1. Hormone X increases blood glucose: Glucagon raises glucose by promoting glycogenolysis and gluconeogenesis, correct. Insulin lowers glucose, so incorrect.
2. Hormone Y, low levels cause lethargy: Thyroxine (T4) regulates metabolism; deficiency (hypothyroidism) causes lethargy, correct.
3. Epinephrine increases glucose but is not linked to lethargy. Estradiol affects reproduction, not lethargy.
4. Thus, X = glucagon, Y = thyroxine, so the answer is (1) Glucagon, thyroxine.