NEET Biology Human Physiology Part Test - Mock Test 1

<� Test Information

• Test Type: Part-Syllabus Mock Test (NEET Pattern)
• Subject: Biology (Human Physiology Only)
• Total Questions: 50 Questions
• Total Marks: 200 Marks
• Duration: 60 Minutes
• Syllabus: NEET Human Physiology (Class 12 Chapters)
• Difficulty Level: NEET 2024 Pattern

Syllabus Coverage

=9 Breathing and Exchange of Gases =9 Body Fluids and Circulation =9 Excretory Products and Their Elimination =9 Locomotion and Movement =9 Neural Control and Coordination =9 Chemical Coordination and Integration

=� Test Instructions

NEET Pattern Guidelines

• Question Type: Multiple Choice Questions (Single Correct Answer)
• Marking Scheme: +4 marks for correct answer, -1 mark for wrong answer
• Unattempted Questions: No marks deducted
• Total Duration: 60 minutes
• Questions per Section: Approximately 8-9 questions per chapter

Strategic Approach

1. Time Management: Approximately 1.2 minutes per question
2. NCERT Priority: 70-80% questions come directly from NCERT
3. Diagram-Based Questions: Pay special attention to labeled diagrams
4. Process of Elimination: Use intelligent guessing when unsure
5. First Attempt: Answer questions you’re confident about first

>� Breathing and Exchange of Gases (8 Questions)

Question 1

The partial pressure of oxygen in alveolar air is: (A) 104 mm Hg (B) 95 mm Hg (C) 40 mm Hg (D) 45 mm Hg

Question 2

Which of the following statements is correct about haemoglobin? (A) It can bind with 4 molecules of O� (B) Binding of first O� molecule increases affinity for subsequent O� molecules (C) CO has higher affinity for haemoglobin than O� (D) All of the above

Question 3

The volume of air that can be inhaled after normal inspiration is: (A) Tidal volume (B) Inspiratory reserve volume (C) Expiratory reserve volume (D) Vital capacity

Question 4

Oxygen dissociation curve shifts to right when: (A) pCO� increases (B) pH decreases (C) Temperature increases (D) All of the above

Question 5

The respiratory centre is located in: (A) Cerebrum (B) Cerebellum (C) Medulla oblongata (D) Hypothalamus

Question 6

Which part of respiratory system is not involved in gaseous exchange? (A) Alveoli (B) Bronchioles (C) Alveolar duct (D) Trachea

Question 7

Carbon dioxide is transported mainly as: (A) Dissolved in plasma (B) Carbamino-haemoglobin (C) Bicarbonate ions (D) Carbamino-proteins

Question 8

The functional unit of lung is: (A) Alveolar duct (B) Alveolar sac (C) Alveolus (D) Bronchiole

d Body Fluids and Circulation (8 Questions)

Question 9

The largest blood vessel in human body is: (A) Aorta (B) Pulmonary artery (C) Vena cava (D) Pulmonary vein

Question 10

Which of the following has the highest haemoglobin concentration? (A) Pulmonary artery (B) Pulmonary vein (C) Renal artery (D) Renal vein

Question 11

The pacemaker of heart is: (A) AV node (B) SA node (C) Bundle of His (D) Purkinje fibers

Question 12

Cardiac output is the product of: (A) Heart rate and stroke volume (B) Heart rate and blood pressure (C) Stroke volume and blood pressure (D) Heart rate and peripheral resistance

Question 13

Which blood component is responsible for blood clotting? (A) RBCs (B) WBCs (C) Platelets (D) Plasma proteins

Question 14

The ’lubb-dubb’ sounds of heart are produced due to: (A) Closure of AV valves and semilunar valves (B) Opening of AV valves and semilunar valves (C) Contraction of atria and ventricles (D) Blood flow through arteries

Question 15

Which of the following is an agranulocyte? (A) Neutrophil (B) Eosinophil (C) Lymphocyte (D) Basophil

Question 16

The double circulation means: (A) Blood passes through heart twice (B) Blood passes through heart twice for each complete circuit (C) Separate pulmonary and systemic circulation (D) Blood circulates in two directions

=� Excretory Products and Their Elimination (8 Questions)

Question 17

The functional unit of kidney is: (A) Pyramid (B) Nephron (C) Pelvis (D) Cortex

Question 18

Which of the following is not reabsorbed in renal tubule? (A) Glucose (B) Amino acids (C) Urea (D) Sodium ions

Question 19

The main excretory product in human beings is: (A) Ammonia (B) Urea (C) Uric acid (D) Creatinine

Question 20

Which hormone increases water reabsorption in kidney? (A) Aldosterone (B) ADH (C) PTH (D) Calcitonin

Question 21

The concentration of urine is mainly dependent on: (A) Loop of Henle (B) Proximal convoluted tubule (C) Distal convoluted tubule (D) Collecting duct

Question 22

Which part of nephron is involved in active secretion of H+ ions? (A) PCT (B) Loop of Henle (C) DCT (D) Collecting duct

Question 23

The normal glomerular filtration rate is: (A) 100-125 ml/min (B) 200-250 ml/min (C) 50-75 ml/min (D) 150-175 ml/min

Question 24

Dialysis works on the principle of: (A) Diffusion (B) Osmosis (C) Active transport (D) Facilitated diffusion

>� Locomotion and Movement (8 Questions)

Question 25

The calcium storage site in muscle fiber is: (A) Sarcoplasm (B) Sarcoplasmic reticulum (C) T-tubules (D) Mitochondria

Question 26

The functional unit of muscle contraction is: (A) Myofibril (B) Sarcomere (C) Myofilament (D) Muscle fiber

Question 27

Which type of muscle is found in the walls of hollow organs? (A) Skeletal muscle (B) Cardiac muscle (C) Smooth muscle (D) Striated muscle

Question 28

The ‘all or none’ law applies to: (A) Single muscle fiber (B) Whole muscle (C) Skeletal muscle (D) All types of muscle

Question 29

Which of the following is a synovial joint? (A) Sutures of skull (B) Joint between vertebrae (C) Knee joint (D) Joint between teeth and jawbone

Question 30

The protein that forms the thin filament in muscle is: (A) Myosin (B) Actin (C) Tropomyosin (D) Troponin

Question 31

The energy for muscle contraction is provided by: (A) ATP (B) ADP (C) Creatine phosphate (D) Both ATP and creatine phosphate

Question 32

Which mineral is essential for muscle contraction? (A) Sodium (B) Potassium (C) Calcium (D) Magnesium

>� Neural Control and Coordination (9 Questions)

Question 33

The longest cranial nerve is: (A) Olfactory nerve (B) Optic nerve (C) Vagus nerve (D) Trigeminal nerve

Question 34

The myelin sheath is formed by: (A) Neuron cell body (B) Schwann cells (C) Nodes of Ranvier (D) Synaptic vesicles

Question 35

Which part of brain maintains posture and equilibrium? (A) Cerebrum (B) Cerebellum (C) Medulla (D) Pons

Question 36

The gap between two neurons is called: (A) Synapse (B) Synaptic cleft (C) Axon terminal (D) Dendrite

Question 37

The neurotransmitter at neuromuscular junction is: (A) Dopamine (B) Serotonin (C) Acetylcholine (D) GABA

Question 38

Which of the following is not a function of cerebrospinal fluid? (A) Provides buoyancy to brain (B) Provides nutrients to brain (C) Removes waste products (D) Produces hormones

Question 39

The sympathetic nervous system: (A) Prepares body for rest and digestion (B) Prepares body for fight or flight response (C) Controls voluntary movements (D) Maintains balance

Question 40

Which lobe of cerebrum is concerned with visual processing? (A) Frontal lobe (B) Parietal lobe (C) Temporal lobe (D) Occipital lobe

Question 41

The refractory period in nerve transmission is due to: (A) Sodium ion inactivation (B) Potassium ion activation (C) Calcium ion influx (D) Magnesium ion block

� Chemical Coordination and Integration (9 Questions)

Question 42

The master gland of endocrine system is: (A) Thyroid (B) Adrenal (C) Pituitary (D) Pancreas

Question 43

Which hormone regulates blood glucose level? (A) Insulin and glucagon (B) Thyroxine (C) Adrenaline (D) Growth hormone

Question 44

The gland that secretes calcitonin is: (A) Thyroid (B) Parathyroid (C) Thymus (D) Pineal

Question 45

Which of the following hormones is secreted by adrenal medulla? (A) Aldosterone (B) Cortisol (C) Adrenaline (D) ACTH

Question 46

The hormone that regulates menstrual cycle in females is: (A) Estrogen and progesterone (B) FSH and LH (C) Testosterone (D) Prolactin

Question 47

Which endocrine gland is located in the neck region? (A) Pancreas (B) Adrenal (C) Thyroid (D) Pituitary

Question 48

The hormone that increases blood pressure is: (A) Insulin (B) Glucagon (C) Vasopressin (D) Aldosterone

Question 49

Which of the following is a peptide hormone? (A) Thyroxine (B) Cortisol (C) Insulin (D) Testosterone

Question 50

The hormone that promotes growth in children is: (A) Thyroxine (B) Growth hormone (C) Prolactin (D) ACTH

=� Answer Key

Breathing and Exchange of Gases

1. (A) 104 mm Hg
2. (D) All of the above
3. (B) Inspiratory reserve volume
4. (D) All of the above
5. (C) Medulla oblongata
6. (D) Trachea
7. (C) Bicarbonate ions
8. (C) Alveolus

Body Fluids and Circulation

9. (A) Aorta
10. (B) Pulmonary vein
11. (B) SA node
12. (A) Heart rate and stroke volume
13. (C) Platelets
14. (A) Closure of AV valves and semilunar valves
15. (C) Lymphocyte
16. (C) Separate pulmonary and systemic circulation

Excretory Products and Their Elimination

17. (B) Nephron
18. (C) Urea
19. (B) Urea
20. (B) ADH
21. (A) Loop of Henle
22. (C) DCT
23. (A) 100-125 ml/min
24. (A) Diffusion

Locomotion and Movement

25. (B) Sarcoplasmic reticulum
26. (B) Sarcomere
27. (C) Smooth muscle
28. (A) Single muscle fiber
29. (C) Knee joint
30. (B) Actin
31. (D) Both ATP and creatine phosphate
32. (C) Calcium

Neural Control and Coordination

33. (C) Vagus nerve
34. (B) Schwann cells
35. (B) Cerebellum
36. (B) Synaptic cleft
37. (C) Acetylcholine
38. (D) Produces hormones
39. (B) Prepares body for fight or flight response
40. (D) Occipital lobe
41. (A) Sodium ion inactivation

Chemical Coordination and Integration

42. (C) Pituitary
43. (A) Insulin and glucagon
44. (A) Thyroid
45. (C) Adrenaline
46. (A) Estrogen and progesterone
47. (C) Thyroid
48. (D) Aldosterone
49. (C) Insulin
50. (B) Growth hormone

=� Performance Analysis

Section-wise Performance

Topic-wise Difficulty Distribution

Score Interpretation

Time Management Analysis

<� Improvement Strategies

For Scores Below 120

1. NCERT Focus: Read each line carefully, especially diagrams
2. Diagrams Practice: Practice all labeled diagrams from NCERT
3. Previous Year Questions: Solve last 10 years NEET questions
4. Regular Revision: Revise each chapter weekly
5. Mock Tests: Take weekly practice tests

For Scores 120-159

1. Concept Clarity: Focus on understanding mechanisms
2. Integration Topics: Study connecting concepts between chapters
3. Speed Practice: Improve solving speed with timed practice
4. Error Analysis: Track and analyze mistakes
5. Weak Areas: Identify and strengthen specific topics

For Scores 160-179

1. Advanced Concepts: Study beyond basic NCERT
2. Application Questions: Practice applied biology questions
3. Time Optimization: Further reduce solving time
4. Accuracy Maintenance: Focus on 100% accuracy
5. Competitive Practice: Attempt more challenging questions

For Scores 180-200

1. Perfection: Aim for zero errors
2. Advanced Topics: Cover research-level understanding
3. Speed Enhancement: Optimize to under 45 seconds per question
4. Pattern Recognition: Quickly identify question types
5. Teaching Others: Explain concepts to reinforce learning

=� Recommended Study Resources

Primary Resources

• NCERT Biology Class 12 - Complete coverage
• NCERT Exemplar - Practice questions
• Previous Year Questions - Pattern analysis

Supplementary Resources

• Biology Video Lectures - Visual learning
• Diagrams and Charts - Visual aids
• Quick Revision Notes - Last-minute prep

Practice Resources

• Chapter-wise Tests - Topic-wise practice
• Full Syllabus Tests - Complete preparation
• Doubt Clearing Sessions - Expert guidance

= Detailed Explanations for Key Questions

Question 2: Haemoglobin Properties

NCERT Class 12, Page 268: “Haemoglobin is a red coloured iron containing pigment present in the RBCs. Each haemoglobin molecule can carry a maximum of four molecules of O�. Binding of oxygen with haemoglobin is primarily related to partial pressure of O�. CO has significantly higher affinity for haemoglobin than O�.”

Question 4: Oxygen Dissociation Curve

NCERT Class 12, Page 269: “The sigmoid shape of oxygen dissociation curve is a result of the cooperative binding of oxygen to haemoglobin. Factors that shift the curve to right include increased pCO�, increased Hz concentration (decreased pH), and increased temperature.”

Question 25: Calcium Storage in Muscles

NCERT Class 11, Page 306: “The sarcoplasmic reticulum of the muscle fibers stores calcium ions. Muscle contraction is initiated by a neural signal, which results in the release of Ca�z from the sarcoplasmic reticulum.”

Question 33: Longest Cranial Nerve

NCERT Class 11, Page 322: “Vagus nerve is the longest cranial nerve. It innervates the heart, lungs, and alimentary canal.”

Question 42: Master Gland

NCERT Class 11, Page 341: “The pituitary gland is located in a bony cavity called sella tursica and is attached to hypothalamus by a stalk. It is often termed as the master gland because it controls the functioning of other endocrine glands.”

= Next Steps for Preparation

1. Analyze Performance: Identify weak areas from this test
2. Targeted Study: Focus 2-3 days on weak chapters
3. Diagrams Practice: Draw and label all important diagrams
4. Regular Testing: Take one part-test every week
5. Full Syllabus Practice: Take complete NEET mock tests monthly

=� Support and Guidance

Academic Support

• Live Doubt Sessions: Daily doubt-clearing with expert faculty
• Study Groups: Peer learning and discussion forums
• Performance Counseling: Personalized guidance based on test performance
• Mentorship: One-on-one sessions with toppers and faculty

Technical Support

• Test Platform: User-friendly interface for smooth experience
• Performance Analytics: Detailed reports and insights
• Progress Tracking: Monitor improvement over time
• Mobile Access: Study anytime, anywhere

Master Human Physiology with this comprehensive part-test and achieve excellence in NEET! ><�

Remember: Human Physiology constitutes approximately 25% of NEET Biology questions. Perfect preparation in this area can significantly boost your overall score and rank.

For detailed explanations, video solutions, and personalized guidance, explore our complete Biology preparation resources and join our expert faculty sessions.