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Question #45433
The Question
A patient is diagnosed with an autonomous hypersecreting tumor in the zona glomerulosa of the adrenal cortex. Based on the principles of hormonal feedback and counter-regulatory mechanisms, which of the following physiological profiles will be observed in this patient?
Options
- A.
Increased Na+ reabsorption, elevated renin secretion, and suppressed Atrial Natriuretic Factor (ANF).
- B.
Increased K+ excretion, suppressed renin secretion, and elevated Atrial Natriuretic Factor (ANF).
- C.
Decreased Na+ reabsorption, elevated angiotensin II, and elevated Atrial Natriuretic Factor (ANF).
- D.
Increased K+ retention, suppressed angiotensinogen production, and suppressed Atrial Natriuretic Factor (ANF).
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Comparative_Analysis
Sharpen your ability to evaluate multiple scenarios and distinguish between competing potential answers.
Concepts Behind This Question
Aldosterone|Renin-Angiotensin-Aldosterone-System|ANF
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Students often view the RAAS and ANF systems in isolation or assume linear causality (e.g., 'If Aldosterone is high, the whole RAAS pathway including Renin must be high').
This question tests the synthesis of negative feedback (high BP suppresses Renin) and counter-regulatory mechanisms (high blood volume triggers ANF release).
The trap lies in failing to recognize that ANF will be paradoxically elevated as a compensatory response to the aldosterone-induced volume expansion.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Chemical Coordination and Integration - Class 11 |
| Concept | Adrenal Cortex vs Medulla |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |