Q.141 Botany ⭐ 360° Option Elimination Active

NEET 2023 Botany Question 141 Solution

Topic: Anatomy of Flowering Plants · Official NTA Booklet Code G5

Question

Identify the correct statements: A. Lenticels are the lens-shaped openings permitting the exchange of gases. B. Bark formed early in the season is called hard bark. C. Bark is a technical term that refers to all tissues exterior to vascular cambium. D. Bark refers to periderm and secondary phloem. E. Phellogen is single-layered in thickness. Choose the correct answer from the options given below:

(1)B and C only
(2)B, C and E only
(3)A and D only
(4)A, B and D only

✓

Verified Against NTA Final Answer Key

Option (3) : A and D only

📚 Anatomy of Flowering Plants Medium

📋 Given Parameters & Problem Setup

Anatomical Statements 5 statements (A-E) on periderm, lenticels, phellogen, and bark

⚡

The 30-Second Exam Hall Shortcut: ⚡ Bark Technicality & Seasonal Texture Precision

⏱️ Save ~30 seconds

Spot the false statements: Early bark is SOFT (not hard, so B is false). Bark is a NON-TECHNICAL term (not technical, so C is false). Phellogen is a COUPLE OF LAYERS thick (not single-layered, so E is false). Thus, ONLY A and D are correct!

1 Statement A: Lenticels are lens-shaped openings permitting gas exchange -> True.

2 Statement B: Bark formed early is hard bark -> False (Early bark is soft bark; late bark is hard bark).

3 Statement C: Bark is a technical term -> False (NCERT: "Bark is a non-technical term referring to all tissues exterior to vascular cambium").

4 Statement D: Bark refers to periderm and secondary phloem -> True.

5 Statement E: Phellogen is single-layered -> False (Phellogen is a couple of layers thick).

6 A and D only -> Select Option (3).

🛡️

Why You Can 100% Trust This Shortcut: Canonical NCERT Plant Anatomy periderm and secondary phloem technical definitions.

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Evaluation of Statements A and D (Valid Statements)

Analyzing the veracity of anatomical statements according to NCERT:

\begin{aligned} \text{\textbf{Statement A:}} & \quad \text{Lenticels are lens-shaped aerating pores in bark} \implies \mathbf{\text{TRUE}} \\[3pt] \text{\textbf{Statement D:}} & \quad \text{Bark anatomically includes periderm } + \text{ secondary phloem} \implies \mathbf{\text{TRUE}} \end{aligned}

Step 2

Evaluation of Statements B, C, and E (Invalid Statements)

Analyzing the specific errors planted in the distractors:

\begin{aligned} \text{\textbf{Statement B:}} & \quad \text{Bark formed early in season is } \mathbf{\text{soft bark}}, \text{ NOT hard bark} \implies \mathbf{\text{FALSE}} \\[3pt] \text{\textbf{Statement C:}} & \quad \text{Bark is a } \mathbf{\text{non-technical term}}, \text{ NOT a technical term} \implies \mathbf{\text{FALSE}} \\[3pt] \text{\textbf{Statement E:}} & \quad \text{Phellogen is } \mathbf{\text{a couple of layers thick}}, \text{ NOT single-layered} \implies \mathbf{\text{FALSE}} \end{aligned}

Step 3

Conclusion

Only Statements A and D are factually and technically correct. Option (3) is the required answer.

⭐

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:

Both B (early bark is soft, not hard) and C (bark is a non-technical term) are false.

⚠️

Student Fallacy (Why candidates pick this trap): Failing to catch the single-word negative distortions in B and C.

2 2

✗ Incorrect

Verdict & Scientific Reason:

All three statements B, C, and E are false.

⚠️

Student Fallacy (Why candidates pick this trap): Selecting all the erroneous statements.

3 3

✓ 100% Correct

Verdict & Scientific Reason:

Statements A and D are completely accurate according to NCERT textbook definitions.

💡

Why this is airtight: None; rigorous critical analysis.

4 4

✗ Incorrect

Verdict & Scientific Reason:

Includes false statement B.

⚠️

Student Fallacy (Why candidates pick this trap): Overlooking that early-season bark is soft bark.

⚠️

NTA Trap Alert: Technical vs. Non-Technical Bark Trap

NCERT explicitly states: "Bark is a non-technical term...". NTA frequently removes the "non-" to create a deceptive distractor that sounds authoritative.

🛡️ How to avoid the -1 mark: Remember: Bark is NON-TECHNICAL. Early bark is SOFT. Phellogen is A COUPLE OF LAYERS thick.

📖

Core NEET Syllabus Standard

NCERT Biology · Anatomy of Flowering Plants Standard Benchmark

Core Scientific Principle Tested:

"Lenticels are lens-shaped openings permitting exchange of gases. Bark is a non-technical term referring to periderm and secondary phloem."

Syllabus Focus: Secondary Growth (Cork Cambium and Bark)

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2023 Botany Question 141 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Bark Technicality & Seasonal Texture Precision

Step-by-Step Rigorous Workflow & Mathematical Proof

Evaluation of Statements A and D (Valid Statements)

Evaluation of Statements B, C, and E (Invalid Statements)

Conclusion

360° Option Elimination Engine Key Feature

NTA Trap Alert: Technical vs. Non-Technical Bark Trap

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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