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Q.188 Zoology ⭐ 360° Option Elimination Active
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NEET 2024 Zoology Question 188 Solution

Topic: Cell: The Unit of Life · Official NTA Booklet Code T1
NEET 2024 Zoology Question 188: Double Membrane Envelope and Comparative Permeability of Organellar Membranes

Question

Given below are two statements: Statement I: Mitochondria and chloroplasts are both double membrane bound organelles. Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast. In the light of the above statements, choose the most appropriate answer from the options given below:

✓
Verified Against NTA Final Answer Key
Option (1) : Statement I is correct but Statement II is incorrect
📚 Cell: The Unit of Life Medium
📋 Given Parameters & Problem Setup
Statement I Mitochondria and chloroplasts are both double membrane bound organelles.
Statement II Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast.
⚡

The 30-Second Exam Hall Shortcut: ⚡ Organelle Double Membrane Permeability Rule

⏱️ Save ~25 seconds

Both mitochondria and chloroplasts are double-membrane bound (Statement I is TRUE). NCERT explicitly states under chloroplasts that OF THE TWO, the INNER chloroplast membrane is relatively less permeable (Statement II is INCORRECT)!

1 Statement I: Mitochondria and chloroplasts are both double membrane bound organelles -> Factually TRUE and textbook fundamental.
2 Statement II: Compares inner membrane permeability of mitochondria to chloroplast. NCERT states under plastids: "Like mitochondria, the chloroplasts are also double membrane bound. Of the two, the inner chloroplast membrane is relatively less permeable." Statement II misquotes/twists this comparison by asserting mitochondrial inner membrane is less permeable compared to chloroplast -> INCORRECT.
3 Conclusion: Statement I is correct but Statement II is incorrect -> Option (1) / A.
🛡️
Why You Can 100% Trust This Shortcut: NCERT Biology · Cell: The Unit of Life (Mitochondria and Chloroplast Membrane Architecture)
📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Evaluate Statement I (Double-Membrane Organization)

Both mitochondria and chloroplasts are semi-autonomous cell organelles enclosed by a double-membrane envelope consisting of an outer membrane and an inner membrane separated by an intermembrane space. Statement I is correct.

Step 2

Evaluate Statement II (Comparative Membrane Permeability)

In NCERT under Chloroplasts, the text states: "Like mitochondria, the chloroplasts are also double membrane bound. Of the two, the inner chloroplast membrane is relatively less permeable." This comparison is between the inner and outer membranes of the chloroplast itself. Statement II incorrectly frames this as a cross-organellar comparison between mitochondria and chloroplasts, making it factually incorrect.

Step 3

Select Resulting Option

Statement I is correct but Statement II is incorrect, matching Option (1).

⭐

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)
✓ 100% Correct
Verdict & Scientific Reason:

Statement I is factually correct; Statement II distorts the NCERT comparative description of inner vs outer plastid membranes.

💡
Why this is airtight: None.
2 (2)
✗ Incorrect
Verdict & Scientific Reason:

Statement I is true.

⚠️
Student Fallacy (Why candidates pick this trap): Statement I is true.
3 (3)
✗ Incorrect
Verdict & Scientific Reason:

Statement II is incorrect.

⚠️
Student Fallacy (Why candidates pick this trap): Statement II is incorrect.
4 (4)
✗ Incorrect
Verdict & Scientific Reason:

Statement I is a fundamental biological fact.

⚠️
Student Fallacy (Why candidates pick this trap): Statement I is a fundamental biological fact.
⚠️

NTA Trap Alert: Contextual Misinterpretation of "Of the Two"

Assuming "of the two" refers to mitochondria vs chloroplasts rather than outer membrane vs inner membrane of the chloroplast.

🛡️ How to avoid the -1 mark: In NCERT, "of the two" refers specifically to the outer and inner membranes of the chloroplast.
📖

Core NEET Syllabus Standard

Biology Core Zoology · Cell: The Unit of Life Standard Benchmark
Core Scientific Principle Tested:

"Like mitochondria, the chloroplasts are also double membrane bound. Of the two, the inner chloroplast membrane is relatively less permeable."

Syllabus Focus: Double Membrane Envelope and Comparative Permeability of Organellar Membranes
✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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