Free Chapter-Wise NEET Mock Tests: Breathing and Exchange of Gases

Why Master Breathing and Exchange of Gases for NEET 2026

Breathing and Exchange of Gases is a NEET Biology must—small but packed with life’s essentials: how we breathe, how oxygen flows. ScienceLesson.in’s vast collection of free chapter-wise NEET mock tests is your key to crushing this chapter. It’s not just rote—it’s the science of survival, vital for NEET and your medical path. Since September 2023, our 25,000+ question bank—crafted by 25-year NEET experts—has been your edge for acing this topic.

With 2 questions (8 marks), it’s a quick win in your 180-mark Biology score. Our free mock tests turn those 8 marks into a sure thing—dive in and dominate!

Key Syllabus Topics and Updates

The NEET 2026 syllabus for Breathing and Exchange of Gases is unchanged—compact and critical. It covers respiratory organs in animals (recall only), the human respiratory system, breathing mechanics and regulation, gas exchange and transport, respiratory volumes, and disorders like asthma. Our vast collection of free chapter-wise NEET mock tests hits every breath, sourced from our 25,000+ question bank by seasoned pros.

Think gills (fish), lungs (humans), nasal passages, trachea, alveoli, diaphragm movement, O2-CO2 swaps, hemoglobin’s role, tidal volume, and asthma’s wheeze or emphysema’s collapse. It’s straightforward—our tests make it stick.

How to Score Well in This Chapter

Scoring those 8 marks is easy with practice, and our vast collection of free chapter-wise NEET mock tests is your weapon. Start a test—no login, instant access—and tackle NEET-style MCQs: “What’s tidal volume?” or “Why asthma?” Solutions come built-in, so you learn fast. Aim for 1-2 minutes per question—NEET speed—covering gas exchange or respiratory disorders. Diagrams (e.g., alveoli, lung volumes) are key—our tests sharpen your eye.

Connect concepts: breathing to gas transport, disorders to volumes. Our questions blend basics (e.g., “O2 carrier?”) with application (e.g., “Emphysema’s effect?”)—NEET-ready with hundreds of questions.

Most Important Topics for NEET

With just 2 questions, NEET targets these—our mock tests nail them:

• Gas Exchange & Transport: Alveoli (O2-CO2 swap), hemoglobin (O2 binding)—NEET loves “How’s O2 moved?”
• Breathing Mechanism: Diaphragm, intercostals, regulation (medulla)—expect “What controls rate?”
• Disorders: Asthma (narrow airways), emphysema (alveoli damage)—know symptoms, causes.

Our free tests—part of the vast collection—pack dozens of questions on gas exchange and disorders, NEET’s picks.

Common Mistakes to Avoid

Don’t miss 8 marks—our mock tests fix these:

• Gas Confusion: Mixing O2 (hemoglobin) with CO2 (bicarbonate)? Our questions clarify—e.g., “O2 binds Hb, CO2 dissolves.”
• Volume Errors: Tidal vs. residual volume? Our MCQs drill—e.g., “Tidal’s normal breath.”
• Disorder Mix-Ups: Asthma (wheeze) vs. emphysema (short breath)? Our tests hit—e.g., “Emphysema breaks alveoli.”
• Skipping Regulation: Forgetting medulla controls breathing? Our questions repeat—e.g., “What senses CO2?”

Hundreds of questions in our collection wipe out slips.

Quick Tips to Ace This Chapter

Crush Breathing with these—our mock tests lock them in:

• Gas Flow: “Lungs → Alveoli → Hb → Body”—add CO2 back. Test with our MCQs—NEET loves it.
• Volume Cheat: “T-I-R” (Tidal, Inspiratory Reserve, Residual)—list amounts (500 mL, 2500 mL, 1200 mL). Our sets quiz you.
• Disorder Note: “A-E-O” (Asthma, Emphysema, Occupational)—one symptom each (wheeze, collapse, dust). Our questions hit hard.
• Diagram Drill: Sketch alveoli, label O2-CO2—our tests match NEET visuals.
• Daily Test: One set from our vast collection—10 minutes, instant feedback—8 marks yours.

No tutor—our solutions teach it all.

Summary

Breathing and Exchange of Gases is a NEET Biology quick hit, and ScienceLesson.in’s vast collection of free chapter-wise NEET mock tests is your slam dunk. Since 2023, our 25,000+ question bank—built by 25-year experts—covers lungs, gas swaps, and asthma like no one else. Nail those 8 marks with practice that’s free, instant, and unbeatable—start now!