Q.173 Zoology ⭐ 360° Option Elimination Active

NEET 2023 Zoology Question 173 Solution

Topic: Human Health and Disease · Official NTA Booklet Code G5

Question

Match List I with List II. List I: A. Heroin; B. Marijuana; C. Cocaine; D. Morphine. List II: I. Effect on cardiovascular system; II. Slow down body function; III. Painkiller; IV. Interfere with transport of dopamine. 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

📚 Human Health and Disease Easy

📋 Given Parameters & Problem Setup

List I (Drugs) Heroin, Marijuana, Cocaine, Morphine

List II (Effects) Effect on cardiovascular system, Slow down body function, Painkiller, Interfere with transport of dopamine

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The 30-Second Exam Hall Shortcut: ⚡ Drug Physiological Action Matcher

⏱️ Save ~25 seconds

Match standard NCERT drug mechanisms: Heroin = Slows down body function (II). Marijuana = Cardiovascular effects (I). Cocaine = Interferes with dopamine transport (IV). Morphine = Potent painkiller/sedative (III)! Match Option (2)!

1 Heroin (smack): Depressant, slows down body functions -> A-II.

2 Marijuana (cannabinoid): Interacts with cannabinoid receptors, effects on cardiovascular system -> B-I.

3 Cocaine (coke/crack): Interferes with the reuptake/transport of dopamine -> C-IV.

4 Morphine: Very effective sedative and painkiller used in post-operative patients -> D-III.

5 Match combination: A-II, B-I, C-IV, D-III -> Option (2).

🛡️

Why You Can 100% Trust This Shortcut: Canonical NCERT Human Health and Disease pharmacology of abused substances.

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Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Pharmacological Actions of Abused Drugs

Analyzing the specific physiological targets described in NCERT:

\begin{aligned} \text{\textbf{A. Heroin:}} & \quad \text{Depressant that } \mathbf{\text{slows down body functions}} \implies \mathbf{\text{II}} \\[4pt] \text{\textbf{B. Marijuana:}} & \quad \text{Known for its } \mathbf{\text{effects on the cardiovascular system}} \implies \mathbf{\text{I}} \\[4pt] \text{\textbf{C. Cocaine:}} & \quad \mathbf{\text{Interferes with the transport of dopamine}} \implies \mathbf{\text{IV}} \\[4pt] \text{\textbf{D. Morphine:}} & \quad \text{Very effective sedative and } \mathbf{\text{painkiller}} \implies \mathbf{\text{III}} \end{aligned}

Step 2

Verbatim NCERT References

NCERT states under Drugs and Alcohol Abuse: - "Heroin is a depressant and slows down body functions." - "Cannabinoids are known for their effects on cardiovascular system of the body." - "Cocaine interferes with the transport of the neuro-transmitter dopamine." - "Morphine is a very effective sedative and painkiller, and is very useful in patients who have undergone surgery."

Step 3

Option Cross-Verification

Matching A-II and B-I immediately isolates Option (2) uniquely.

⭐

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:

Mismatches Heroin with painkiller and Cocaine with cardiovascular effects.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing heroin with morphine clinical use.

2 2

✓ 100% Correct

Verdict & Scientific Reason:

Flawless 1-to-1 match with canonical NCERT drug classifications.

💡

Why this is airtight: None; textbook verbatim match.

3 3

✗ Incorrect

Verdict & Scientific Reason:

Mismatches Heroin with cardiovascular effects.

⚠️

Student Fallacy (Why candidates pick this trap): Scrambling physiological responses.

4 4

✗ Incorrect

Verdict & Scientific Reason:

Mismatches Heroin with dopamine interference.

⚠️

Student Fallacy (Why candidates pick this trap): Assigning dopamine transport to opioids instead of cocaine.

⚠️

NTA Trap Alert: Morphine vs. Heroin Question Distinction Trap

Both morphine and heroin are opioids derived from Papaver somniferum. NCERT specifically reserves "painkiller for surgical patients" for Morphine, and "depressant that slows down body functions" for Heroin.

🛡️ How to avoid the -1 mark: Morphine = Medical painkiller. Heroin = Depressant slowing body functions.

📖

Core NEET Syllabus Standard

NCERT Biology · Human Health and Disease Standard Benchmark

Core Scientific Principle Tested:

"Heroin slows down body functions; Cannabinoids affect cardiovascular system; Cocaine interferes with dopamine transport; Morphine is a painkiller."

Syllabus Focus: Drugs and Alcohol Abuse

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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NEET 2023 Zoology Question 173 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Drug Physiological Action Matcher

Step-by-Step Rigorous Workflow & Mathematical Proof

Pharmacological Actions of Abused Drugs

Verbatim NCERT References

Option Cross-Verification

360° Option Elimination Engine Key Feature

NTA Trap Alert: Morphine vs. Heroin Question Distinction Trap

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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