NEET Biology: Human Physiology MCQ Quiz with Answers – Test Yourself

     NEET Biology: Human Physiology MCQ          Quiz with Answers – Test Yourself       


Boost your NEET preparation with our Human Physiology MCQ Quiz! This interactive quiz is designed specifically for NEET Biology aspirants, covering important topics in Human Physiology with carefully selected multiple-choice questions (MCQs). Each question comes with a detailed answer and explanation to help you learn and revise effectively. Test your knowledge, identify weak areas, and improve your score with this free online quiz. Perfect for NEET 2025, medical entrance exam practice, and chapter-wise biology revision.

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NEET Biology: Human Physiology MCQ Quiz with Answers – Test Yourself

Looking to strengthen your NEET Biology preparation? Human Physiology is a high-weightage topic in the NEET exam. Practice these carefully curated Human Physiology MCQs for NEET and test your understanding with detailed answers provided below.

✅ Instructions:

  • Choose the most appropriate answer from the given options.

  • Each question is based on the NEET Biology syllabus.

  • Answers are provided at the end of the quiz.

🔬 Human Physiology MCQs for NEET

1. Which part of the brain is responsible for thermoregulation in humans?

A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Medulla oblongata

2. What is the primary function of bile juice?

A) Digestion of proteins
B) Emulsification of fats
C) Activation of pepsin
D) Neutralization of acids

3. Which enzyme is present in saliva and aids in carbohydrate digestion?

A) Trypsin
B) Lipase
C) Amylase
D) Pepsin

4. Which structure prevents the entry of food into the windpipe during swallowing?

A) Uvula
B) Epiglottis
C) Glottis
D) Pharynx

5. What is the function of the SA node in the human heart?

A) Pumps blood into the lungs
B) Initiates and regulates heartbeat
C) Receives blood from the body
D) Supplies oxygenated blood to the heart

6. Which of the following hormones increases blood glucose levels?

A) Insulin
B) Glucagon
C) Thyroxine
D) Oxytocin

7. In which part of the nephron does maximum reabsorption of water occur?

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

8. Which muscle type is found in the walls of internal organs like the intestine?

A) Cardiac muscle
B) Skeletal muscle
C) Smooth muscle
D) Voluntary muscle

9. Which component of blood is responsible for clotting?

A) RBCs
B) WBCs
C) Platelets
D) Plasma

10. Which vitamin is essential for proper blood clotting?

A) Vitamin A
B) Vitamin C
C) Vitamin D
D) Vitamin K

📝 Answers – NEET Human Physiology MCQs

  1. C) Hypothalamus

  2. B) Emulsification of fats

  3. C) Amylase

  4. B) Epiglottis

  5. B) Initiates and regulates heartbeat

  6. B) Glucagon

  7. C) Proximal convoluted tubule

  8. C) Smooth muscle

  9. C) Platelets

  10. D) Vitamin K

NEET Biology: Human Physiology MCQ Quiz (Part 2) – Test Yourself More

Strengthen your NEET Biology concepts with these additional Human Physiology MCQs. Covering topics like respiration, excretion, circulation, locomotion, and endocrine systems, these questions are ideal for final revision.

🔬 Human Physiology MCQs for NEET – Set 2

11. Which part of the human respiratory system is the actual site of gas exchange?

A) Bronchi
B) Alveoli
C) Trachea
D) Bronchioles

12. What is the normal pH range of human blood?

A) 6.0 – 6.5
B) 7.0 – 7.2
C) 7.35 – 7.45
D) 8.0 – 8.5

13. Which of the following structures is a part of the excretory system?

A) Pancreas
B) Urethra
C) Gall bladder
D) Liver

14. Which hormone regulates the reabsorption of water in the kidneys?

A) Adrenaline
B) ADH (Vasopressin)
C) Oxytocin
D) Aldosterone

15. Which part of the gastrointestinal tract has finger-like projections called villi?

A) Stomach
B) Small intestine
C) Large intestine
D) Rectum

16. What is the function of hemoglobin in blood?

A) Transport nutrients
B) Regulate blood pressure
C) Carry oxygen
D) Fight infections

17. Which mineral ion is essential for muscle contraction?

A) Sodium
B) Potassium
C) Calcium
D) Magnesium

18. Which part of the ear is involved in maintaining body balance?

A) Cochlea
B) Tympanum
C) Eustachian tube
D) Semicircular canals

19. Which hormone is secreted by the pancreas to lower blood sugar levels?

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

20. Which type of white blood cell is responsible for immunity?

A) Erythrocytes
B) Thrombocytes
C) Lymphocytes
D) Monocytes

📝 Answers – NEET Human Physiology MCQs (Set 2)

  1. B) Alveoli

  2. C) 7.35 – 7.45

  3. B) Urethra

  4. B) ADH (Vasopressin)

  5. B) Small intestine

  6. C) Carry oxygen

  7. C) Calcium

  8. D) Semicircular canals

  9. C) Insulin

  10. C) Lymphocyt

🧠 NEET Biology: Human Physiology MCQ Quiz (Part 3) – Advance Your Practice

These carefully selected NEET Human Physiology MCQs will help sharpen your conceptual clarity and time management. Each question is framed based on the NEET syllabus and follows the latest exam pattern.

🔬 Human Physiology MCQs for NEET – Set 3

21. Which one of the following hormones does NOT affect blood pressure?

A) Aldosterone
B) Adrenaline
C) Thyroxine
D) Insulin

22. The pacemaker of the human heart is located in the:

A) Left atrium
B) Right ventricle
C) Right atrium
D) Left ventricle

23. Which neurotransmitter is released at neuromuscular junctions?

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

24. Which organ is primarily responsible for detoxification in the human body?

A) Kidney
B) Liver
C) Lungs
D) Intestine

25. The sliding filament theory explains the mechanism of:

A) Blood clotting
B) Nerve impulse conduction
C) Muscle contraction
D) Heartbeat regulation

26. Which ion is necessary for blood clotting?

A) Sodium
B) Potassium
C) Calcium
D) Magnesium

27. The hormone oxytocin is secreted by:

A) Adrenal gland
B) Thyroid gland
C) Pituitary gland
D) Pancreas

28. Bowman’s capsule is a part of which structure?

A) Neuron
B) Nephron
C) Liver lobule
D) Alveolus

29. What is the role of the loop of Henle in the nephron?

A) Filtration
B) Glucose absorption
C) Concentration of urine
D) Hormone secretion

30. Which of the following is NOT a function of the liver?

A) Production of bile
B) Urea synthesis
C) Detoxification
D) Production of insulin

✅ Answers – NEET Human Physiology MCQs (Set 3)

  1. D) Insulin

  2. C) Right atrium

  3. C) Acetylcholine

  4. B) Liver

  5. C) Muscle contraction

  6. C) Calcium

  7. C) Pituitary gland

  8. B) Nephron

  9. C) Concentration of urine

  10. D) Production of insulin

🧪 NEET Biology: Human Physiology MCQ Quiz (Part 4) – Boost Final Preparation

Enhance your NEET Biology score by practicing these advanced MCQs on Human Physiology. These are designed to simulate real exam difficulty and promote active recall of key processes and functions in the human body.

🔬 Human Physiology MCQs for NEET – Set 4

31. Juxtaglomerular cells secrete renin in response to:

A) High blood glucose
B) Low blood pressure
C) High blood pressure
D) Low oxygen level in blood

32. Which of the following is an example of a positive feedback mechanism in the human body?

A) Regulation of blood glucose
B) Regulation of body temperature
C) Blood clotting
D) Water reabsorption by kidneys

33. Which among the following is not part of the limbic system?

A) Amygdala
B) Hippocampus
C) Medulla oblongata
D) Hypothalamus

34. Which segment of the nephron plays a major role in maintaining the concentration gradient in the medulla?

A) Proximal convoluted tubule
B) Loop of Henle
C) Bowman’s capsule
D) Distal convoluted tubule

35. During vigorous exercise, lactic acid accumulates in muscles due to:

A) Aerobic respiration
B) Anaerobic respiration
C) Glycogenolysis
D) Protein metabolism

36. The cardiac cycle in humans takes approximately:

A) 0.4 seconds
B) 0.8 seconds
C) 1.2 seconds
D) 2 seconds

37. Myelin sheath in the peripheral nervous system is formed by:

A) Astrocytes
B) Schwann cells
C) Oligodendrocytes
D) Microglia

38. Which of the following statements about synapses is FALSE?

A) Electrical synapses are faster than chemical synapses
B) Chemical synapses involve neurotransmitter release
C) Synapses are only found in the central nervous system
D) Synaptic transmission ensures unidirectional flow of impulses

39. Which hormone promotes sodium reabsorption and potassium excretion in kidneys?

A) ADH
B) Oxytocin
C) Cortisol
D) Aldosterone

40. The T-wave in an ECG represents:

A) Atrial depolarization
B) Ventricular depolarization
C) Atrial repolarization
D) Ventricular repolarization

✅ Answers – NEET Human Physiology MCQs (Set 4)

  1. B) Low blood pressure

  2. C) Blood clotting

  3. C) Medulla oblongata

  4. B) Loop of Henle

  5. B) Anaerobic respiration

  6. B) 0.8 seconds

  7. B) Schwann cells

  8. C) Synapses are only found in the central nervous system

  9. D) Aldosterone

  10. D) Ventricular repolarization

🧬 NEET Biology: Human Physiology MCQ Quiz (Part 5) – Test and Strengthen Your Knowledge

This final set in the Human Physiology series includes a balanced mix of factual recall and concept-based questions, ideal for NEET 2025 aspirants preparing for last-round revision.

🔬 Human Physiology MCQs for NEET – Set 5

41. Which of the following statements is true regarding oxygen transport in humans?

A) Most oxygen is transported dissolved in plasma
B) Oxygen binds to plasma proteins
C) Oxygen is mainly transported by red blood cell nuclei
D) Oxygen is primarily transported by binding to hemoglobin

42. Which enzyme is secreted in an inactive form and becomes active in the stomach?

A) Lipase
B) Amylase
C) Pepsinogen
D) Maltase

43. Which part of the brain controls voluntary muscle movements?

A) Hypothalamus
B) Medulla oblongata
C) Cerebellum
D) Cerebrum

44. The stretch receptors involved in micturition reflex are located in the:

A) Urethra
B) Kidney
C) Urinary bladder
D) Ureter

45. Which among the following is NOT a function of the large intestine?

A) Absorption of water
B) Formation of feces
C) Digestion of proteins
D) Absorption of some vitamins

46. Which hormone increases calcium levels in the blood?

A) Calcitonin
B) Insulin
C) Parathyroid hormone
D) Thyroxine

47. Which blood vessel supplies oxygenated blood to the heart muscle itself?

A) Pulmonary vein
B) Aorta
C) Coronary artery
D) Superior vena cava

48. Which segment of the nephron is impermeable to water?

A) Ascending limb of Loop of Henle
B) Descending limb of Loop of Henle
C) Proximal convoluted tubule
D) Collecting duct

49. Which of the following is released during allergic reactions?

A) Interleukin
B) Histamine
C) Thrombin
D) Insulin

50. Which hormone directly stimulates milk ejection from mammary glands?

A) Estrogen
B) Prolactin
C) Oxytocin
D) LH

✅ Answers – NEET Human Physiology MCQs (Set 5)

  1. D) Oxygen is primarily transported by binding to hemoglobin

  2. C) Pepsinogen

  3. D) Cerebrum

  4. C) Urinary bladder

  5. C) Digestion of proteins

  6. C) Parathyroid hormone

  7. C) Coronary artery

  8. A) Ascending limb of Loop of Henle

  9. B) Histamine

  10. C) Oxytocin


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