Q.106 Botany ⭐ 360° Option Elimination Active

NEET 2026 Botany Question 106 Solution

Topic: Biomolecules · Official NTA Booklet Code 50

Question

Match List-I with List-II. List I: A. Starch; B. Antibody; C. Concanavalin A; D. Glut-4. List II: I. Fights infection; II. Energy storage; III. Glucose transport; IV. Lectin. Choose the correct answer from the options given below:

✓

Verified Against NTA Final Answer Key

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

📚 Biomolecules Easy

📋 Given Parameters & Problem Setup

List-I Compounds A. Starch, B. Antibody, C. Concanavalin A, D. Glut-4

List-II Biological Roles I. Fights infection, II. Energy storage, III. Glucose transport, IV. Lectin

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The 30-Second Exam Hall Shortcut: ⚡ Instant Biomolecule Match Hack

⏱️ Save ~45 seconds

Match GLUT-4 to Glucose Transport (III) and Starch to Energy Storage (II)!

1 Recognize GLUT-4: Glucose Transporter type 4 enables glucose transport into cells (D -> III).

2 Recognize Starch: Major carbohydrate storage form in plants (A -> II).

3 Look at options where A-II and D-III align: only Option (2) satisfies both!

4 Select Option (2) in under 10 seconds without checking further.

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biology · Biomolecules (Secondary Metabolites: Pigments, alkaloids, terpenoids, lectins, and toxins).

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Analyze A: Starch

Starch is a homopolymer of α-glucose molecules and serves as the principal energy storage polysaccharide in plant tissues. In animals, excess energy is stored as glycogen.

\text{Starch} \xrightarrow{\text{Function}} \text{Energy storage (II)}

• Forms helical secondary structures capable of trapping iodine molecules (giving a blue-black colour).

Step 2

Analyze B: Antibody

Antibodies (immunoglobulins) are defensive glycoproteins produced by B lymphocytes and plasma cells in response to antigens. Their primary function is to fight infectious pathogens.

\text{Antibody (Ig)} \xrightarrow{\text{Immune response}} \text{Fights infectious agents (I)}

• Listed under "Some Proteins and their Functions" in NCERT Table 9.5.

Step 3

Analyze C: Concanavalin A

Concanavalin A is an agglutinating carbohydrate-binding protein extracted from the jack bean (Canavalia ensiformis). In plant biochemistry and NCERT classification, it is categorized under Lectins (Secondary Metabolites).

\text{Concanavalin A} \xrightarrow{\text{Classification}} \text{Lectin (Secondary Metabolite) (IV)}

• Listed under Table 9.3: Some Secondary Metabolites (Category: Lectins).

Step 4

Analyze D: GLUT-4

GLUT-4 (Glucose Transporter 4) is an insulin-regulated transmembrane transport protein found primarily in adipose tissues and striated muscle. It facilitates the cellular uptake and transport of glucose.

\text{GLUT-4} \xrightarrow{\text{Membrane transport}} \text{Enables glucose transport into cells (III)}

• Listed in NCERT Table 9.5: "GLUT-4: Enables glucose transport into cells."

Step 5

Synthesize the Complete Combination

Matching all components yields: A-II, B-I, C-IV, D-III, which exactly corresponds to Option (2).

\text{Match}: \mathbf{A}\text{-II}, \; \mathbf{B}\text{-I}, \; \mathbf{C}\text{-IV}, \; \mathbf{D}\text{-III}

• A -> II (Energy storage)
• B -> I (Fights infection)
• C -> IV (Lectin)
• D -> III (Glucose transport)

⭐

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. Links Starch to fighting infection (A-I) and Antibody to energy storage (B-II).

⚠️

Student Fallacy (Why candidates pick this trap): Swapped Starch and Antibody functions.

2 B

✓ 100% Correct

Verdict & Scientific Reason:

100% accurate correlation for all four biomolecules according to NCERT Chapter 9.

💡

Why this is airtight: None; flawless direct recall.

3 C

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Swaps Concanavalin A and GLUT-4 roles (claims Concanavalin A transports glucose and GLUT-4 is a lectin).

⚠️

Student Fallacy (Why candidates pick this trap): Inverting secondary metabolite classification with transport protein.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Completely inverted pairing across all entries.

⚠️

Student Fallacy (Why candidates pick this trap): Random guessing under time pressure.

⚠️

NTA Trap Alert: Secondary Metabolite Table Overlook

NCERT Table 9.3 (Secondary Metabolites) is an ultra-high-yield source in NEET. Candidates often forget that Concanavalin A is a Lectin, while Abrin and Ricin are Toxins.

🛡️ How to avoid the -1 mark: Remember the pair: Lectin = Concanavalin A; Toxins = Abrin & Ricin.

📖

Core NEET Syllabus Standard

NEET Biology Core Syllabus · Biomolecules Standard Benchmark

Core Scientific Principle Tested:

"Proteins carry out diverse structural, catalytic, transport (GLUT-4), and defensive (Antibody) roles. Polysaccharides like starch store energy, while secondary metabolites include lectins (Concanavalin A)."

Syllabus Focus: Proteins, Polysaccharides, and Secondary Metabolites

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

GLU-T-4 transports GLUcose; Lectin is Concanavalin A; Starch stores fuel, and Antibodies slay!

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NEET 2026 Botany Question 106 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Instant Biomolecule Match Hack

Step-by-Step Rigorous Workflow & Mathematical Proof

Analyze A: Starch

Analyze B: Antibody

Analyze C: Concanavalin A

Analyze D: GLUT-4

Synthesize the Complete Combination

360° Option Elimination Engine Key Feature

NTA Trap Alert: Secondary Metabolite Table Overlook

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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