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Question #47657
The Question
A metabolic poison selectively halts glycolysis in the epithelial cells of the Proximal Convoluted Tubule (PCT), severely depleting their ATP pool. Concurrently, the patient experiences an abnormal hypersecretion of Atrial Natriuretic Factor (ANF). Which of the following physiological outcomes is LEAST likely to occur?
Options
- A.
Cessation of secondary active transport of glucose and amino acids across the PCT epithelium.
- B.
Severe osmotic diuresis due to the retention of unabsorbed electrolytes in the tubular lumen.
- C.
Robust release of renin from the juxtaglomerular (JG) cells leading to compensatory vasoconstriction.
- D.
A drastic reduction in the obligatory reabsorption of water from the proximal tubule.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
ANF | Tubular Secretion | ATP-dependent Sodium Pumps | Glycolytic Rate
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot & Functional Overlap: Students often reflexively associate massive fluid loss (diuresis) with the immediate activation of RAAS (renin release and vasoconstriction).
The trap lies in overlooking the antagonistic role of ANF.
The question tests the synthesis of cellular respiration (ATP dependency of active transport) with macroscopic renal endocrinology, specifically highlighting that ANF hypersecretion overrides the default RAAS compensatory mechanism.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Respiration in Plants - Class 11 |
| Concept | Glycolysis Redox Balance |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |