Human physiology is one of the largest units in NEET Biology. This set takes one or two core facts from each NCERT Class 11 physiology chapter: digestion, breathing and gas exchange, body fluids and circulation, excretion, locomotion, neural control and chemical coordination.
How to practise: read each question and tap the option you think is correct. You will see right away whether you got it, along with a short explanation, and your score is tracked at the bottom of the screen. This set has 15 questions.
Topics covered in this set
- Digestive enzymes and bile
- Respiratory volumes and gas transport
- Heart, blood pressure and blood groups
- Nephron and ADH
- Muscle contraction and nerve impulse
- Endocrine glands and hormones
NEET Biology MCQs with answers and explanations
Q1. Pepsin is secreted in an inactive form called pepsinogen by which cells?
a) Goblet cells
b) Parietal (oxyntic) cells
c) Chief (peptic) cells
d) Kupffer cells
Q2. Which statement about bile is correct?
a) It digests proteins
b) It contains lipase
c) It is produced by the gallbladder
d) It emulsifies fats and contains no digestive enzymes
Q3. What is the approximate tidal volume of a healthy adult human?
a) 3,000 mL
b) 500 mL
c) 1,200 mL
d) 150 mL
Q4. In what form is most carbon dioxide transported in the blood?
a) As bicarbonate ions
b) Dissolved in plasma
c) Bound to platelets
d) As carbaminohaemoglobin
Q5. Which structure acts as the natural pacemaker of the human heart?
a) SA node
b) Bundle of His
c) Purkinje fibres
d) AV node
Q6. What is the normal blood pressure of a healthy adult?
a) 80/120 mmHg
b) 140/100 mmHg
c) 100/60 mmHg
d) 120/80 mmHg
Q7. A person with blood group O (Rh negative) is called a universal donor because their red blood cells:
a) Have neither A nor B antigens and no Rh antigen
b) Have both A and B antigens
c) Have no antibodies in plasma
d) Have only antibody anti-Rh
Q8. What is the structural and functional unit of the kidney?
a) Neuron
b) Alveolus
c) Villus
d) Nephron
Q9. ADH (vasopressin) reduces urine volume by increasing water reabsorption in the:
a) Glomerulus
b) Proximal convoluted tubule
c) Distal convoluted tubule and collecting duct
d) Bowman's capsule
Q10. During muscle contraction, calcium ions bind to:
a) Actin directly
b) Troponin, which moves tropomyosin to expose binding sites on actin
c) Myosin heads
d) ATP
Q11. What is the approximate resting membrane potential of a neuron?
a) +70 mV
b) −70 mV
c) −7 mV
d) 0 mV
Q12. Insulin is secreted by which cells?
a) Adrenal cortex
b) α-cells of the islets of Langerhans
c) β-cells of the islets of Langerhans
d) Thyroid follicles
Q13. Which hormones are released from the posterior pituitary?
a) Oxytocin and vasopressin (ADH)
b) TSH and ACTH
c) GH and prolactin
d) FSH and LH
Q14. Which is the largest gland in the human body?
a) Pancreas
b) Pituitary
c) Thyroid
d) Liver
Q15. What is the average lifespan of a human red blood cell?
a) 120 days
b) 60 days
c) 20 days
d) 1 year
Quick revision notes
- Pepsinogen from chief cells, HCl from parietal cells; bile has no enzymes.
- Tidal volume ≈ 500 mL; most CO₂ moves as bicarbonate.
- SA node is the pacemaker; normal BP 120/80 mmHg.
- ADH acts on DCT and collecting duct.
- Insulin from β-cells, glucagon from α-cells; posterior pituitary releases oxytocin and ADH.
Frequently asked questions
Are these NEET previous year questions?
No, they are original practice questions based on the NCERT Class 11 human physiology chapters.
Which physiology chapters are most important for NEET?
Breathing and exchange of gases, body fluids and circulation, excretory products, neural control and chemical coordination appear regularly.
How should I revise physiology?
Learn each process as a flow (for example, the path of urine formation or the cardiac cycle), then memorise the numerical values NCERT gives.
Comments
Post a Comment