Q.148 Zoology ⭐ 360° Option Elimination Active

NEET 2026 Zoology Question 148 Solution

Topic: Chemical Coordination and Integration · Official NTA Booklet Code 50

Question

Match List-I with List-II. List I: A. Excess growth hormone; B. Luteinizing hormone; C. Vasopressin; D. Oxytocin. List II: I. Reabsorption of water and electrolytes in kidney; II. Contraction of uterus during child birth; III. Acromegaly; IV. Ovulation. Choose the correct answer from the options given below:

✓

Verified Against NTA Final Answer Key

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

📚 Chemical Coordination and Integration Easy

📋 Given Parameters & Problem Setup

List-I Hormones & Conditions A. Excess growth hormone, B. Luteinizing hormone, C. Vasopressin, D. Oxytocin

List-II Physiological Effects I. Reabsorption of water and electrolytes in kidney, II. Contraction of uterus during child birth, III. Acromegaly, IV. Ovulation

⚡

The 30-Second Exam Hall Shortcut: ⚡ Pituitary Hormone Anchor Hack

⏱️ Save ~45 seconds

Oxytocin = Uterus contraction (D -> II); Excess GH in adults = Acromegaly (A -> III)!

1 Anchor D: Oxytocin induces vigorous contraction of uterus during child birth (D -> II).

2 Anchor A: Excess secretion of growth hormone in adults leads to Acromegaly (A -> III).

3 Anchor B: LH surge triggers Ovulation (B -> IV).

4 Anchor C: Vasopressin (ADH) stimulates reabsorption of water and electrolytes in kidney (C -> I).

5 Combination: A-III, B-IV, C-I, D-II -> Matches Option (2)!

6 Mark Option (2) in under 10 seconds.

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biology · Chemical Coordination and Integration (Hypothalamic and Pituitary Hormones: GnRH stimulates gonadotropin release).

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Correlate A: Excess Growth Hormone with Acromegaly

Hypersecretion of growth hormone (GH) in adults (middle-aged individuals after epiphyseal plate closure) causes disfigurement, especially of the face, hands, and feet. This clinical pathology is termed Acromegaly.

\text{Excess GH in adults} \implies \mathbf{Acromegaly\text{ (III)}}

• A pairs with III.

Step 2

Correlate B: Luteinizing Hormone with Ovulation

In females, an LH surge at mid-cycle stimulates the rupture of the mature Graafian follicle and induces ovulation, and maintains the corpus luteum.

\text{Luteinizing Hormone (LH)} \implies \mathbf{Ovulation\text{ (IV)}}

• B pairs with IV.

Step 3

Correlate C: Vasopressin with Renal Reabsorption

Vasopressin (Antidiuretic Hormone, ADH), released from neurohypophysis, acts mainly on the distal convoluted tubules and collecting ducts of the nephron to stimulate reabsorption of water and electrolytes.

\text{Vasopressin (ADH)} \implies \mathbf{Reabsorption\text{ of water and electrolytes in kidney (I)}}

• C pairs with I.

Step 4

Correlate D: Oxytocin with Parturition Uterine Contraction

Oxytocin acts on the smooth myometrium of the uterus, stimulating vigorous contractions during parturition (child birth) and milk ejection from mammary glands.

\text{Oxytocin} \implies \mathbf{Contraction\text{ of uterus during child birth (II)}}

• D pairs with II.

Step 5

Synthesize the Complete Match

The combined match is A-III, B-IV, C-I, D-II. Looking at the options, this corresponds to Option (2).

\text{Match}: \mathbf{A}\text{-III}, \; \mathbf{B}\text{-IV}, \; \mathbf{C}\text{-I}, \; \mathbf{D}\text{-II} \implies \text{Option (2)}

• Matches official NTA final answer key Option B / (2).

⭐

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 A

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Swaps Vasopressin and Oxytocin actions (assigns uterus contraction to Vasopressin).

⚠️

Student Fallacy (Why candidates pick this trap): Swapping posterior pituitary hormone functions.

2 B

✓ 100% Correct

Verdict & Scientific Reason:

100% accurate match for all four pituitary hormones and disorders according to NCERT.

💡

Why this is airtight: None; flawless endocrine recall.

3 C

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Links excess GH to uterine contraction and Oxytocin to Acromegaly.

⚠️

Student Fallacy (Why candidates pick this trap): Completely scrambled hormone effects.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Assigns ovulation to excess GH and Acromegaly to LH.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing anterior pituitary hormones.

⚠️

NTA Trap Alert: Posterior Pituitary Hormone Confusion (ADH vs Oxytocin)

Both ADH (Vasopressin) and Oxytocin are synthesized in the hypothalamus and released by neurohypophysis. Remember: Vasopressin acts on the VESSEL and NEPHRON (water saving); Oxytocin causes CONTRACTION of the uterus and milk ducts.

🛡️ How to avoid the -1 mark: Oxy = Quick Birth (Uterus); Vaso = Water Vessel (Kidney).

📖

Core NEET Syllabus Standard

NEET Biology Core Syllabus · Chemical Coordination and Integration Standard Benchmark

Core Scientific Principle Tested:

"Excess GH causes Acromegaly; LH triggers ovulation; Vasopressin promotes renal water reabsorption; Oxytocin induces uterine contractions."

Syllabus Focus: The Pituitary Gland - Hormones and Target Actions

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

Acromegaly from GH, LH brings Ovum home, Vasopressin saves Water, Oxytocin makes Babies roam!

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NEET 2026 Zoology Question 148 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Pituitary Hormone Anchor Hack

Step-by-Step Rigorous Workflow & Mathematical Proof

Correlate A: Excess Growth Hormone with Acromegaly

Correlate B: Luteinizing Hormone with Ovulation

Correlate C: Vasopressin with Renal Reabsorption

Correlate D: Oxytocin with Parturition Uterine Contraction

Synthesize the Complete Match

360° Option Elimination Engine Key Feature

NTA Trap Alert: Posterior Pituitary Hormone Confusion (ADH vs Oxytocin)

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

🔗 Related Questions — Chemical Coordination and Integration

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Endocrine Secretion Sites of Progesterone, Relaxin, MSH, and Catecholamines

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