Q.123 Botany ⭐ 360° Option Elimination Active

NEET 2024 Botany Question 123 Solution

Topic: Anatomy of Flowering Plants · Official NTA Booklet Code T1

Question

Given below are two statements: Statement I: Parenchyma is living but collenchyma is dead tissue. Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms. In the light of the above statements, choose the correct answer from the options given below:

(1)Statement I is true but Statement II is false
(2)Statement I is false but Statement II is true
(3)Both Statement I and Statement II are true
(4)Both Statement I and Statement II are false

✓

Verified Against NTA Final Answer Key

Option (2) : Statement I is false but Statement II is true

📚 Anatomy of Flowering Plants Easy

📋 Given Parameters & Problem Setup

Statement I Collenchyma is a dead mechanical tissue lacking living protoplasm.

Statement II Gymnosperms lack xylem vessels in their xylem tissue.

⚡

The 30-Second Exam Hall Shortcut: ⚡ Living vs Dead Plant Tissues

⏱️ Save ~20 seconds

Collenchyma consists of living cells with localized pectin thickenings (Statement I is FALSE; Sclerenchyma is dead). Gymnosperms possess tracheids and lack true xylem vessels (Statement II is TRUE)!

1 Statement I: "Collenchyma is dead" -> False! Collenchyma is living mechanical tissue with active protoplasm (sclerenchyma is dead).

2 Statement II: "Gymnosperms lack vessels" -> True! Gymnosperm xylem consists predominantly of tracheids; vessels are absent (except in Gnetales).

3 Conclusion: Statement I is false but Statement II is true -> Option (2) / B.

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biology · Anatomy of Flowering Plants (Collenchyma and Complex Tissues)

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Evaluate Statement I (Collenchyma Properties)

Collenchyma is a simple permanent tissue consisting of living cells characterized by unevenly thickened corners due to deposition of cellulose, hemicellulose, and pectin. They possess living protoplasts and chloroplasts, providing mechanical flexibility to growing stems and petioles. Calling collenchyma "dead" is factually false (sclerenchyma is the dead mechanical tissue).

Step 2

Evaluate Statement II (Gymnosperm Xylem Properties)

In gymnosperms, xylem lacks vessels (except in order Gnetales). Water conduction occurs primarily through tracheids. Thus, the statement that gymnosperms lack vessels in their xylem is universally true in standard plant taxonomy.

Step 3

Synthesize Conclusion

Statement I is false and Statement II is true, leading directly to Option (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 (1)

✗ Incorrect

Verdict & Scientific Reason:

Collenchyma is living, not dead; and gymnosperms lack vessels.

⚠️

Student Fallacy (Why candidates pick this trap): Collenchyma is living, not dead; and gymnosperms lack vessels.

2 (2)

✓ 100% Correct

Verdict & Scientific Reason:

Accurately assesses that collenchyma is a living tissue while gymnosperms lack vessels.

💡

Why this is airtight: None.

3 (3)

✗ Incorrect

Verdict & Scientific Reason:

Statement I is false because collenchyma consists of living cells.

⚠️

Student Fallacy (Why candidates pick this trap): Statement I is false because collenchyma consists of living cells.

4 (4)

✗ Incorrect

Verdict & Scientific Reason:

Statement II is factually true.

⚠️

Student Fallacy (Why candidates pick this trap): Statement II is factually true.

⚠️

NTA Trap Alert: Collenchyma vs Sclerenchyma

Confusing collenchyma with sclerenchyma because both provide mechanical support.

🛡️ How to avoid the -1 mark: Remember: Collenchyma is LIVING mechanical tissue with pectin corners; Sclerenchyma is DEAD mechanical tissue with lignified walls.

📖

Core NEET Syllabus Standard

Biology Core Botany · Anatomy of Flowering Plants Standard Benchmark

Core Scientific Principle Tested:

"Collenchyma consists of cells which are much thickened at the corners due to a deposition of cellulose, hemicellulose and pectin. Collenchymatous cells may be oval, spherical or polygonal and often contain chloroplasts... Gymnosperms lack vessels in their xylem."

Syllabus Focus: Collenchyma Living Nature and Gymnosperm Xylem Composition

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2024 Botany Question 123 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Living vs Dead Plant Tissues

Step-by-Step Rigorous Workflow & Mathematical Proof

Evaluate Statement I (Collenchyma Properties)

Evaluate Statement II (Gymnosperm Xylem Properties)

Synthesize Conclusion

360° Option Elimination Engine Key Feature

NTA Trap Alert: Collenchyma vs Sclerenchyma

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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