Q.141 Zoology ⭐ 360° Option Elimination Active

NEET 2025 Zoology Question 141 Solution

Topic: Sexual Reproduction in Flowering Plants · Official NTA Booklet Code 45

Question

Match List I with List II. List I: A. Scutellum; B. Non-albuminous seed; C. Epiblast; D. Perisperm. List II: I. Persistent nucellus; II. Cotyledon of Monocot seed; III. Groundnut; IV. Rudimentary cotyledon. Choose the option with all correct matches.

✓

Verified Against NTA Final Answer Key

Option (1) : A-II, B-III, C-IV, D-I

📚 Sexual Reproduction in Flowering Plants Easy

📋 Given Parameters & Problem Setup

List I (Botanical Terms) A. Scutellum, B. Non-albuminous seed, C. Epiblast, D. Perisperm

List II (Definitions / Examples) I. Persistent nucellus, II. Cotyledon of Monocot seed, III. Groundnut, IV. Rudimentary cotyledon

⚡

The 30-Second Exam Hall Shortcut: ⚡ Seed Anatomy Match Fingerprint

⏱️ Save ~30 seconds

Scutellum = Monocot shield cotyledon (II); Non-albuminous = Groundnut (endosperm fully consumed) (III); Epiblast = Rudimentary 2nd cotyledon (IV); Perisperm = Persistent nucellus (I)! Code: A-II, B-III, C-IV, D-I!

1 Match each term directly from NCERT Section 2.4:

2 - Scutellum: The single large cotyledon of a monocotyledonous (grass) embryo (A -> II).

3 - Non-albuminous seed: Seeds with no residual endosperm (e.g. Groundnut, pea, gram) (B -> III).

4 - Epiblast: Represents the rudimentary second cotyledon opposite the scutellum in grass embryos (C -> IV).

5 - Perisperm: Persistent residual nucellus found in black pepper and beet (D -> I).

6 Unique combination: A-II, B-III, C-IV, D-I (Option 1)!

7 Solved in under 10 seconds!

🛡️

Why You Can 100% Trust This Shortcut: Apomixis and Polyembryony Mechanisms (NCERT Biology · Sexual Reproduction in Flowering Plants: Agamospermy and nucellar adventive embryony).

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Review of the Embryological and Seed Terms

Analyzing each specialized botanical structure:

• A. Scutellum: In monocot embryos (especially the grass family / Poaceae), the single shield-shaped cotyledon situated towards one side of the embryonal axis is called the scutellum. Hence, A matches II.
• B. Non-albuminous seed: Non-albuminous (exalbuminous) seeds retain no residual endosperm because it is entirely consumed during embryo development. Classic examples include groundnut, pea, and bean. Hence, B matches III.
• C. Epiblast: In grass embryos, a small flap-like rudimentary outgrowth situated opposite the scutellum represents the reduced remnant of the second cotyledon, termed the epiblast. Hence, C matches IV.
• D. Perisperm: In most seeds, the nucellus is completely consumed during embryo sac enlargement and endosperm development. However, in certain seeds such as black pepper (*Piper nigrum*) and beet (*Beta vulgaris*), remnants of persistent nucellus are retained, known as perisperm. Hence, D matches I.

Step 2

Assembling the Matching Matrix

Compiling the verified associations:

• A -> II (Cotyledon of Monocot seed)
• B -> III (Groundnut)
• C -> IV (Rudimentary cotyledon)
• D -> I (Persistent nucellus)

Step 3

Conclusion

The unambiguous combination is A-II, B-III, C-IV, D-I, which is Option (1).

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

⭐

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

✓ 100% Correct

Verdict & Scientific Reason:

100% correct. Accurately matches all 4 seed and embryo structures with their precise definitions.

💡

Why this is airtight: None; comprehensive botanical recall.

2 B

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Assigns rudimentary cotyledon to scutellum and monocot cotyledon to epiblast.

⚠️

Student Fallacy (Why candidates pick this trap): Swapping scutellum and epiblast.

3 C

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Reverses perisperm and epiblast mappings.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing persistent nucellus with rudimentary cotyledon.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Claims groundnut is an epiblast.

⚠️

Student Fallacy (Why candidates pick this trap): Careless misreading of List II options.

⚠️

NTA Trap Alert: Scutellum vs Epiblast

Both relate to cotyledons in grasses: SCUTELLUM is the functional, single large shield cotyledon. EPIBLAST is the rudimentary, reduced remnant of the second cotyledon.

🛡️ How to avoid the -1 mark: Scutellum = Shield (1st functional cotyledon); Epiblast = Echo/Rudimentary 2nd cotyledon.

📖

Core NEET Syllabus Standard

NEET Biology Core Syllabus · Sexual Reproduction in Flowering Plants Standard Benchmark

Core Scientific Principle Tested:

"Scutellum is the monocot cotyledon, groundnut is non-albuminous, epiblast is rudimentary cotyledon, and perisperm is persistent nucellus."

Syllabus Focus: Development of Seed and Embryo

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

S-Cot (Scutellum), G-Non (Groundnut), E-Rudi (Epiblast), P-Nuc (Perisperm)!

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NEET 2025 Zoology Question 141 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Seed Anatomy Match Fingerprint

Step-by-Step Rigorous Workflow & Mathematical Proof

Review of the Embryological and Seed Terms

Assembling the Matching Matrix

Conclusion

360° Option Elimination Engine Key Feature

NTA Trap Alert: Scutellum vs Epiblast

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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