The Question is from neet-zoology chemical-coordincation-and-integration , and it was created by the author T HARITHA

Question

Which of the following combinations of hormones are synergistic in their effect on blood glucose levels?

T HARITHA · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Hormonal regulation of blood glucose
 **Related Topics**: Endocrinology, metabolism, glucose homeostasis
 **Prerequisites**: Understanding of insulin, glucagon, epinephrine, and their roles in blood sugar control.
## SOLUTION PATHWAY
**Given Information**:
  Four hormone combinations are provided as options.
  We need to identify the synergistic pair.
**Method & Steps**:
 1. Analyze each hormone pair's effect on blood glucose.
  Reasoning: Synergistic hormones work together to amplify a particular effect. In this case, we're looking for hormones that both increase blood glucose levels.
 2. Evaluate the individual hormone actions.
  Working:
  * Insulin: Lowers blood glucose levels.
  * Glucagon: Raises blood glucose levels.
  * Growth Hormone: Raises blood glucose levels (indirectly, by promoting gluconeogenesis).
  * Epinephrine: Raises blood glucose levels (by stimulating glycogenolysis and gluconeogenesis).
  * Calcitonin: Lowers blood calcium levels (not directly involved in glucose regulation).
  * Parathyroid Hormone: Raises blood calcium levels (not directly involved in glucose regulation).
 3. Identify the synergistic pair.
  Result: Glucagon and epinephrine both increase blood glucose levels, thus exhibiting a synergistic effect.
  Verification: Their combined effect on blood glucose is greater than the sum of their individual effects.
 ## OPTION ANALYSIS
A :x: Insulin and glucagon have antagonistic effects on blood glucose. Insulin lowers it, while glucagon raises it.
B :x: Insulin lowers blood glucose, while growth hormone raises it, but their effects are not strongly synergistic.  Growth hormone's effect on blood glucose is indirect and less potent than glucagon or epinephrine.
C ✓: Glucagon and epinephrine both raise blood glucose levels through different mechanisms.  Their combined effect is synergistic, leading to a significant increase in blood glucose.
D :x: Calcitonin and parathyroid hormone regulate calcium levels, not blood glucose levels.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the effects of insulin and glucagon: Remember insulin lowers blood glucose, while glucagon raises it.
  2.Overlooking the indirect effects of hormones: Growth hormone's effect on blood glucose is indirect, but still significant.
 **Quick Tips**:
  1.Remember the primary function of each hormone to quickly analyze their synergistic potential.
  2.Focus on hormones that have similar effects on blood glucose levels.

T HARITHA · Answer

Insulin and Glucagon

T HARITHA · Answer

Insulin and Growth Hormone

T HARITHA · Answer

The correct Option is "Glucagon and Epinephrine"

T HARITHA · Answer

Calcitonin and Parathyroid Hormone

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