Q.138 Botany ⭐ 360° Option Elimination Active

NEET 2023 Botany Question 138 Solution

Topic: Transport in Plants · Official NTA Booklet Code G5

Question

Match List I with List II. List I: A. Cohesion; B. Adhesion; C. Surface tension; D. Guttation. List II: I. More attraction in liquid phase; II. Mutual attraction among water molecules; III. Water loss in liquid phase; IV. Attraction towards polar surfaces. Choose the correct answer from the options given below:

✓

Verified Against NTA Final Answer Key

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

📚 Transport in Plants Easy

📋 Given Parameters & Problem Setup

Phenomena Cohesion, Adhesion, Surface tension, Guttation

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The 30-Second Exam Hall Shortcut: ⚡ Cohesion-Tension & Guttation Definitions Match

⏱️ Save ~25 seconds

Cohesion = Mutual attraction between water molecules (II). Adhesion = Attraction to polar surfaces like tracheids (IV). Surface tension = Greater attraction in liquid phase than gas (I). Guttation = Loss of liquid water droplets through hydathodes (III)!

1 Cohesion: Mutual attraction among water molecules -> A-II.

2 Adhesion: Attraction towards polar surfaces (tracheary walls) -> B-IV.

3 Surface tension: More attraction in liquid phase -> C-I.

4 Guttation: Water loss in liquid phase -> D-III.

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

🛡️

Why You Can 100% Trust This Shortcut: Canonical NCERT Transport in Plants physical properties of water table.

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Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Physical Properties of Water Mediating Ascent of Sap

Transpiration pull depends on three fundamental intermolecular properties of water:

\begin{aligned} \text{\textbf{Cohesion:}} & \quad \text{Mutual attraction among water molecules} \implies \mathbf{\text{II}} \\[3pt] \text{\textbf{Adhesion:}} & \quad \text{Attraction of water molecules to polar surfaces (tracheary elements)} \implies \mathbf{\text{IV}} \\[3pt] \text{\textbf{Surface tension:}} & \quad \text{Water molecules attracted to each other more in liquid phase than gas} \implies \mathbf{\text{I}} \end{aligned}

Step 2

Definition of Guttation

Root pressure drives the exudation of water in the liquid phase through specialized hydathode pores at vein endings of leaves during nights or early mornings when transpiration is low:

\text{\textbf{Guttation:}} \quad \text{Water loss in liquid phase} \implies \mathbf{\text{III}}

Step 3

Option Verification

Pairing A-II, B-IV, C-I, D-III perfectly matches Option (2).

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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 Adhesion with surface tension properties.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing adhesion to surfaces with liquid phase intermolecular tension.

2 2

✓ 100% Correct

Verdict & Scientific Reason:

Verbatim alignment with NCERT physical definitions of cohesion, adhesion, surface tension, and guttation.

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Why this is airtight: None; precise physical chemistry and plant physiology recall.

3 3

✗ Incorrect

Verdict & Scientific Reason:

Scrambles all associations.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing cohesion with adhesion.

4 4

✗ Incorrect

Verdict & Scientific Reason:

Mismatches cohesion with liquid loss.

⚠️

Student Fallacy (Why candidates pick this trap): Assigning water loss to cohesion.

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NTA Trap Alert: Cohesion vs. Adhesion Distinction Trap

Cohesion is attraction between like molecules (water-to-water). Adhesion is attraction between unlike molecules (water-to-polar cell wall surfaces).

🛡️ How to avoid the -1 mark: Cohesion = "Co-" means together (water-water). Adhesion = "Adhere" to a different surface (water-wall).

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Core NEET Syllabus Standard

NCERT Biology · Transport in Plants Standard Benchmark

Core Scientific Principle Tested:

"Cohesion is mutual attraction between water molecules; Adhesion is attraction to polar surfaces; Surface tension is greater attraction in liquid phase; Guttation is water loss in liquid phase."

Syllabus Focus: Transpiration Pull & Guttation

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2023 Botany Question 138 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Cohesion-Tension & Guttation Definitions Match

Step-by-Step Rigorous Workflow & Mathematical Proof

Physical Properties of Water Mediating Ascent of Sap

Definition of Guttation

Option Verification

360° Option Elimination Engine Key Feature

NTA Trap Alert: Cohesion vs. Adhesion Distinction Trap

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

🔗 Related Questions — Transport in Plants

Physical Properties of Water Driving Transpiration Pull & Guttation

Root Pressure and Guttation via Hydathodes

Transpiration Pull Physics and Evaporative Cooling

Active Transport Across Biological Membranes

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