The Question is from neet-zoology excretory-products-and-their-elimination function-of-the-tubules, and it was created by the author Mr. BALACHANDRA.N

Question

The majority of glucose reabsorption in the nephron occurs in which part of the renal tubule?

Mr. BALACHANDRA.N · Accepted Answer

## CORE INFORMATION
✓ **Answer**: A
## CONCEPT FRAMEWORK
 **Primary Concept**: Renal Physiology, specifically glucose reabsorption in the nephron.
 **Related Topics**: Nephron structure, tubular reabsorption, glucose transporters (SGLT2 and SGLT1), diabetes mellitus.
 **Prerequisites**: Basic understanding of kidney function and nephron anatomy.
## SOLUTION PATHWAY
**Given Information**:
	The question asks about the location of the majority of glucose reabsorption within the nephron.
	Options: Proximal Convoluted Tubule (PCT), Loop of Henle, Distal Convoluted Tubule (DCT), Collecting Duct.
**Method & Steps**:
 1. Identify the primary site of glucose reabsorption.
  Reasoning: Glucose is a vital nutrient; the body strives to reclaim almost all filtered glucose.  This reabsorption primarily happens in the proximal convoluted tubule (PCT).
  Formula/Rule:  No specific formula is needed; this is based on physiological knowledge.
 2. Consider the roles of other nephron segments.
  Working: While some glucose reabsorption might occur in other parts of the nephron, it is negligible compared to the PCT.
  Key Point: The PCT has a high density of sodium-glucose co-transporters (SGLT2 and SGLT1) that actively reabsorb glucose.
 3. Determine the location with the highest reabsorption rate.
  Result: Proximal Convoluted Tubule (PCT)
  Verification: This aligns with established physiological understanding of renal glucose handling.
 ## OPTION ANALYSIS
A] ✓: Proximal Convoluted Tubule:  Correct. The majority (almost all) of glucose reabsorption takes place in the PCT due to the high concentration of glucose transporters.
B] :x: Loop of Henle: Incorrect. The Loop of Henle is primarily involved in concentrating urine and reabsorbing water and ions, not glucose.
C] :x: Distal Convoluted Tubule: Incorrect. The DCT plays a role in fine-tuning electrolyte balance and acid-base regulation, not significant glucose reabsorption.
D] :x: Collecting Duct: Incorrect. The collecting duct primarily regulates water and ion balance and concentrates urine, not glucose reabsorption.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the roles of different nephron segments:  Understanding the specific function of each part of the nephron is crucial.
  2.Overlooking the importance of active transport: Glucose reabsorption is an active process requiring energy.
 **Quick Tips**:
  1.Remember the PCT's role in reabsorbing most of the filtered nutrients.
  2.Associate glucose reabsorption with active transport and sodium co-transport.

Mr. BALACHANDRA.N · Answer

The correct Option is "Proximal Convoluted Tubule"

Mr. BALACHANDRA.N · Answer

Loop of Henle

Mr. BALACHANDRA.N · Answer

Distal Convoluted Tubule

Mr. BALACHANDRA.N · Answer

Collecting Duct

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