Human Physiology Important Questions for Re NEET 2026

Human Physiology is one of the most important and high-scoring units in the NEET Biology syllabus, contributing a significant number of questions every year. Chapters such as Digestion and Absorption, Breathing and Exchange of Gases, Body Fluids and Circulation, Excretory Products and Their Elimination, Locomotion and Movement, Neural Control and Coordination, and Chemical Coordination and Integration form the foundation of this unit. A strong understanding of physiological processes, organ systems, hormones, and their functions is essential for achieving a high score in NEET 2026.

To help aspirants strengthen their preparation, we have compiled a set of Human Physiology Important Questions for Re-NEET 2026 based on the latest NCERT syllabus and previous years’ NEET trends. These questions cover frequently tested concepts, assertion-reason type questions, diagram-based questions, and application-oriented MCQs that are commonly asked in the examination.

Practicing these important questions will not only improve conceptual clarity but also enhance speed, accuracy, and confidence during the exam. Students are advised to revise the NCERT textbook thoroughly and solve these questions regularly to identify weak areas and improve retention. Consistent practice of Human Physiology MCQs can significantly boost your performance and help you secure maximum marks in the Biology section of Re-NEET 2026.

Human Physiology Important Questions for NEET 2026

Ques 1. Which part of the nephron is primarily responsible for the reabsorption of glucose and amino acids?

A. Loop of Henle
B. Distal convoluted tubule
C. Proximal convoluted tubule
D. Collecting duct

Answer: C. Proximal convoluted tubule

Ques 2. The pacemaker of the human heart is:

A. AV node
B. Bundle of His
C. Purkinje fibers
D. SA node

Answer: D. SA node

Ques 3. Which hormone decreases blood glucose levels?

A. Glucagon
B. Adrenaline
C. Cortisol
D. Insulin

Answer: D. Insulin

Ques 4. Oxygen is transported in blood mainly as:

A. issolved oxygen
B. Oxyhaemoglobin
C. Carbaminohaemoglobin
D. Bicarbonate ions

Answer: B. Oxyhaemoglobin

Ques 5. Which blood vessel carries oxygenated blood from the lungs to the heart?

A. Pulmonary artery
B. Aorta
C. Pulmonary vein
D. Vena cava

Answer: C. Pulmonary vein

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Ques 6. The functional unit of the kidney is:

A. Alveolus
B. Neuron
C. Nephron
D. Glomerulus

Answer: C. Nephron

Ques 7. Which hormone is responsible for milk ejection in humans?

A. Prolactin
B. Oxytocin
C. Estrogen
D. Progesterone

Answer: B. Oxytocin

Ques 8. During inhalation, the diaphragm:

A. Relaxes and becomes dome-shaped
B. Contracts and flattens
C. Remains unchanged
D. Moves upward

Answer: B. Contracts and flattens

Ques 9. Which of the following is NOT a component of the cardiac conduction system?

A. SA node
B. AV node
C. Bundle of His
D. Medulla oblongata

Answer: D. Medulla oblongata

Ques 10. The normal pH of human blood is:

A. 6.8–7.0
B. 7.35–7.45
C. 7.8–8.0
D. 6.5–6.7

Answer: B. 7.35–7.45

Ques 11. Which endocrine gland is known as the "master gland"?

A. Thyroid
B. Adrenal
C. Pituitary
D. Pancreas

Answer: C. Pituitary

Ques 12. Which part of the brain regulates body temperature?

A. Cerebrum
B. Cerebellum
C. Thalamus
D. Hypothalamus

Answer: D. Hypothalamus

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Ques 13. The hormone ADH primarily acts on:

A. Liver
B. Kidney tubules
C. Pancreas
D. Heart

Answer: B. Kidney tubules

Ques 14. Which blood group is called the universal donor?

A. A
B. B
C. AB
D. O negative

Answer: D. O negative

Ques 15. Surfactant in the lungs is secreted by:

A. Type I pneumocytes
B. Type II pneumocytes
C. Alveolar macrophages
D. Goblet cells

Answer: B. Type II pneumocytes

Ques 16. Which hormone stimulates the secretion of thyroid hormones?

A. ACTH
B. TSH
C. FSH
D. LH

Answer: B. TSH

Ques 17. The ECG wave representing ventricular depolarization is:

A. P wave
B. QRS complex
C. T wave
D. U wave

Answer: B. QRS complex

Ques 18. Which neurotransmitter is released at the neuromuscular junction?

A. Dopamine
B. Serotonin
C. Acetylcholine
D. GABA

Answer: C. Acetylcholine

Ques 19. The Bohr effect refers to:

A. Increased oxygen affinity at high CO₂
B. Decreased oxygen affinity at high CO₂
C. Increased CO₂ transport
D. Formation of carbaminohaemoglobin

Answer: B. Decreased oxygen affinity at high CO₂

Ques 20. Which of the following hormones is secreted by the adrenal medulla?

A. Cortisol
B. Aldosterone
C. Adrenaline
D. Testosterone

Answer: C. Adrenaline

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NEET 2026 Questions from Human Physiology

Ques 1. Which of the following combinations correctly represents respiratory volumes?

1. Residual volume = 1100–1200 mL, Inspiratory reserve volume = 2500–3000 mL, Tidal volume = 500 mL
2. Residual volume = 500 mL, Inspiratory reserve volume = 1100–1200 mL, Tidal volume = 2500–3000 mL
3. Residual volume = 2500–3000 mL, Inspiratory reserve volume = 500 mL, Tidal volume = 1100–1200 mL
4. Residual volume = 3000 mL, Inspiratory reserve volume = 1200 mL, Tidal volume = 500 mL

Answer: (1) Residual volume = 1100–1200 mL, Inspiratory reserve volume = 2500–3000 mL, Tidal volume = 500 mL

Ques 2. Match List I with List II

Choose the correct answer:

1. A-III B-IV C-I D-II
2. A-III B-IV C-II D-I
3. A-IV B-II C-I D-III
4. A-IV B-III C-I D-II

Answer: (1) A-III, B-IV, C-I, D-II

Ques 3. Which of the following disorders is caused by the substitution of Glutamic acid (Glu) by Valine (Val) at the sixth position of the beta globin chain of the haemoglobin molecule?

1. Haemophilia
2. Thalassemia
3. Sickle-cell anaemia
4. Phenylketonuria

Answer: (3) Sickle-cell anaemia

NEET 2025 Questions from Human Physiology

Ques 1. Match the endocrine organs with their hormones

Match List-I with List-II

Choose the correct answer:

1. A–I, B–III, C–IV, D–II
2. A–III, B–I, C–IV, D–II
3. A–II, B–I, C–III, D–IV
4. A–IV, B–III, C–II, D–I

Answer: (2) A–III, B–I, C–IV, D–II

Ques 2. Why can't insulin be given orally to diabetic patients?

1. Because of structural variation
2. Its bioavailability will be increased
3. Human body will elicit strong immune response
4. It will be digested in Gastro-Intestinal (GI) tract

Answer: (4) It will be digested in GI tract

Ques 3. Match the following human disorders

Match List-I with List-II

Choose the correct answer:

1. A–II, B–IV, C–III, D–I
2. A–II, B–III, C–IV, D–I
3. A–III, B–I, C–IV, D–II
4. A–III, B–I, C–II, D–IV

Answer: (2) A–II, B–III, C–IV, D–I

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Ques 4. Cardiac activities of the heart are regulated by:

A. Nodal tissue
B. A special neural centre in the medulla oblongata
C. Adrenal medullary hormones
D. Adrenal cortical hormones

Choose the correct answer:

1. A, C and D Only
2. A, B and D Only
3. A, B and C Only
4. A, B, C and D

Answer: (3) A, B and C Only