Q.62 Zoology ⭐ 360° Option Elimination Active

NEET 2020 Zoology Question 62 Solution

Topic: Neural Control and Coordination · Official NTA Booklet Code E1

Question

Match the following columns and select the correct option. Column - I Column - II (a) Organ of Corti (i) Connects middle ear and pharynx (b) Cochlea (ii) Coiled part of the labyrinth (c) Eustachian tube (iii) Attached to the oval window (d) Stapes (iv) Located on the basilar membrane (a) (b) (c) (d)

(1)(ii) (iii) (i) (iv)
(2)(iii) (i) (iv) (ii)
(3)(iv) (ii) (i) (iii)
(4)(i) (ii) (iv) (iii)

✓

Verified Against NTA Final Answer Key

Option (3) : (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)

📚 Neural Control and Coordination Easy

📋 Given Parameters & Problem Setup

Column I (Ear Structures) (a) Organ of Corti, (b) Cochlea, (c) Eustachian tube, (d) Stapes

Column II (Descriptions) (i) Connects middle ear and pharynx, (ii) Coiled part of the labyrinth, (iii) Attached to the oval window, (iv) Located on the basilar membrane

⚡

The 30-Second Exam Hall Shortcut: ⚡ "Corti = Basilar; Cochlea = Coiled; Eustachian = Pharynx; Stapes = Oval Window!"

⏱️ 25 seconds

Organ of Corti rests on the basilar membrane (a->iv). Cochlea is the coiled portion of the labyrinth (b->ii). Eustachian tube connects middle ear to pharynx (c->i). Stapes attaches to the oval window (d->iii). Match gives Option (3) in 10 seconds!

1 Organ of Corti -> (iv) Located on the basilar membrane.

2 Cochlea -> (ii) Coiled part of the labyrinth.

3 Eustachian tube -> (i) Connects middle ear and pharynx.

4 Stapes -> (iii) Attached to the oval window (fenestra ovalis).

5 Mapping: (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii) -> Option 3.

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biology · Human Physiology: Neural Control and Coordination (The Ear)

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Match Organ of Corti

The Organ of Corti is a structure located on the basilar membrane of the cochlea which contains hair cells that act as auditory receptors. Thus, (a) matches (iv).

Step 2

Match Cochlea

The inner ear consists of fluid-filled labyrinth; the coiled, snail shell-like portion of the labyrinth is called the cochlea. Thus, (b) matches (ii).

Step 3

Match Eustachian Tube

The Eustachian tube connects the middle ear cavity with the pharynx and helps in equalizing the pressures on either side of the ear drum. Thus, (c) matches (i).

Step 4

Match Stapes

The middle ear contains three ossicles (Malleus, Incus, Stapes). The stapes is attached to the oval window (fenestra ovalis) of the cochlea. Thus, (d) matches (iii).

⭐

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; places Organ of Corti as coiled part and stapes on basilar membrane.

⚠️

Student Fallacy (Why candidates pick this trap): Swapping ear structures and locations.

2 B

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; misassigns Eustachian tube to basilar membrane.

⚠️

Student Fallacy (Why candidates pick this trap): Random mispairing.

3 C

✓ 100% Correct

Verdict & Scientific Reason:

Accurate pairing across all four anatomical features of the ear.

💡

Why this is airtight: None; textbook auditory anatomy.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; mispairs Organ of Corti with middle ear-pharynx connection.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing sensory organ of hearing with pressure equalization tube.

⚠️

NTA Trap Alert: Malleus vs Stapes Attachments

Malleus is attached to the TYMPANIC MEMBRANE (ear drum). Stapes is attached to the OVAL WINDOW (fenestra ovalis).

🛡️ How to avoid the -1 mark: Mnemonic: "M-T, S-O" -> Malleus to Tympanum, Stapes to Oval window!

📖

Core NEET Syllabus Standard

Zoology · Neural Control and Coordination Standard Benchmark

Core Scientific Principle Tested:

Syllabus Focus: Anatomy of the Human Ear: Organ of Corti, Cochlea, Eustachian Tube & Stapes

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2020 Zoology Question 62 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ "Corti = Basilar; Cochlea = Coiled; Eustachian = Pharynx; Stapes = Oval Window!"

Step-by-Step Rigorous Workflow & Mathematical Proof

Match Organ of Corti

Match Cochlea

Match Eustachian Tube

Match Stapes

360° Option Elimination Engine Key Feature

NTA Trap Alert: Malleus vs Stapes Attachments

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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