Q.167 Zoology ⭐ 360° Option Elimination Active

NEET 2023 Zoology Question 167 Solution

Topic: Chemical Coordination and Integration · Official NTA Booklet Code G5

Question

Match List I with List II. List I: A. CCK; B. GIP; C. ANF; D. ADH. List II: I. Kidney; II. Heart; III. Gastric gland; IV. Pancreas. Choose the correct answer from the options given below:

✓

Verified Against NTA Final Answer Key

Option (2) : A-IV, B-III, C-II, D-I

📚 Chemical Coordination and Integration Easy

📋 Given Parameters & Problem Setup

Hormones CCK (Cholecystokinin), GIP, ANF, ADH

Target / Source Organs Kidney, Heart, Gastric gland, Pancreas

⚡

The 30-Second Exam Hall Shortcut: ⚡ Peptide Hormone Source & Target Decoder

⏱️ Save ~25 seconds

Match each hormone to its textbook partner: CCK acts on the Pancreas (IV). GIP inhibits the Gastric gland (III). ANF is secreted by the Heart (II). ADH targets the Kidney (I)! Match Option (2)!

1 CCK (Cholecystokinin): Stimulates pancreas to secrete pancreatic enzymes and gall bladder to contract -> A-IV.

2 GIP (Gastric Inhibitory Peptide): Inhibits gastric secretion and motility -> B-III.

3 ANF (Atrial Natriuretic Factor): Secreted by atrial myocytes of the heart -> C-II.

4 ADH (Vasopressin): Acts on distal tubules of kidney to reabsorb water -> D-I.

5 Match combination: A-IV, B-III, C-II, D-I -> Option (2).

🛡️

Why You Can 100% Trust This Shortcut: Canonical NCERT Chemical Coordination and Integration non-endocrine hormones inventory.

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Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Endocrine and Gastrointestinal Hormone Interactions

Analyzing the anatomical associations of peptide hormones secreted by heart, kidney, and gastrointestinal mucosa:

\begin{aligned} \text{\textbf{A. CCK:}} & \quad \text{Cholecystokinin acts on exocrine } \mathbf{\text{Pancreas}} \text{ and gallbladder} \implies \mathbf{\text{IV}} \\[4pt] \text{\textbf{B. GIP:}} & \quad \text{Gastric Inhibitory Peptide inhibits } \mathbf{\text{Gastric gland}} \text{ secretion} \implies \mathbf{\text{III}} \\[4pt] \text{\textbf{C. ANF:}} & \quad \text{Atrial Natriuretic Factor secreted by atria of } \mathbf{\text{Heart}} \implies \mathbf{\text{II}} \\[4pt] \text{\textbf{D. ADH:}} & \quad \text{Antidiuretic Hormone acts on collecting ducts of } \mathbf{\text{Kidney}} \implies \mathbf{\text{I}} \end{aligned}

Step 2

Verbatim NCERT References

NCERT states under Hormones of Heart, Kidney and Gastrointestinal Tract: - "CCK acts on both pancreas and gall bladder and stimulates the secretion of pancreatic enzymes and bile juice, respectively." - "GIP inhibits gastric secretion and motility." - "ANF is secreted by the atrial wall of our heart." - "ADH facilitates water reabsorption from latter parts of the tubule in the kidney."

Step 3

Option Elimination

A-IV is present in Options (1) and (2). B-III uniquely isolates Option (2), ruling out Option (1) which has B-II.

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 1

✗ Incorrect

Verdict & Scientific Reason:

Mismatches GIP with heart and ANF with gastric gland.

⚠️

Student Fallacy (Why candidates pick this trap): Swapping GIP and ANF targets/sources.

2 2

✓ 100% Correct

Verdict & Scientific Reason:

Flawless 1-to-1 match with the canonical NCERT hormone-organ pairs.

💡

Why this is airtight: None; textbook verbatim match.

3 3

✗ Incorrect

Verdict & Scientific Reason:

Mismatches CCK with gastric gland.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing gastrin with CCK.

4 4

✗ Incorrect

Verdict & Scientific Reason:

Mismatches CCK with heart.

⚠️

Student Fallacy (Why candidates pick this trap): Scrambling multiple hormone associations.

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NTA Trap Alert: Secretin vs. CCK Pancreatic Action Trap

Secretin stimulates water and bicarbonate secretion from the exocrine pancreas; CCK stimulates pancreatic ENZYME secretion from the pancreas. Both act on the pancreas.

🛡️ How to avoid the -1 mark: Remember: CCK = Pancreatic enzymes + Gall bladder bile. GIP = Gastric inhibition.

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Core NEET Syllabus Standard

NCERT Biology · Chemical Coordination and Integration Standard Benchmark

Core Scientific Principle Tested:

"CCK acts on pancreas; GIP acts on gastric glands; ANF is secreted by heart; ADH acts on kidney."

Syllabus Focus: Hormones of Heart, Kidney and Gastrointestinal Tract

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2023 Zoology Question 167 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Peptide Hormone Source & Target Decoder

Step-by-Step Rigorous Workflow & Mathematical Proof

Endocrine and Gastrointestinal Hormone Interactions

Verbatim NCERT References

Option Elimination

360° Option Elimination Engine Key Feature

NTA Trap Alert: Secretin vs. CCK Pancreatic Action Trap

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

🔗 Related Questions — Chemical Coordination and Integration

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