Science Series 2026 - Biology Human 02 Time Left: 8:00 Question 1: Inflammation at a wound site (redness, swelling) mainly indicates: Less blood flow More digestion Immediate bone formation Submit Question 2: Fever during infection can be beneficial because it: Stops blood circulation Stops digestion permanently Prevents oxygen transport Can slow growth of some pathogens and boosts immune response Submit Question 3: Vaccination helps prevent diseases by: Replacing blood with lymph Stopping respiration Stimulating the body to produce antibodies and memory cells Killing all microbes instantly forever Submit Question 4: Immunity developed after vaccination is called: Natural passive immunity Artificial active immunity Artificial passive immunity Natural active immunity only Submit Question 5: Which of these is a common sign of an allergic reaction? Increased bile Bone fracture Sneezing and itching Low urine volume Submit Question 6: The chemicals released by certain immune cells during allergy include: Histamine Bile Pepsin Insulin Submit Question 7: Which of these diseases is caused by a virus and prevented by vaccination? Goitre Rickets Polio Scurvy Submit Question 8: Which statement about antibiotics is correct? They are vaccines They cure all viral infections They replace antibodies They work against bacteria, not viruses Submit Question 9: When a cut occurs, blood clots to prevent: Excessive blood loss and entry of germs Urine formation Digestion Gas exchange Submit Question 10: The organ that filters blood and helps in immune functions (basic level) is the: Spleen Trachea Appendix Gall bladder Submit Question 11: The lymphatic system helps in transport of: Food to stomach Oxygen to brain only Urine to bladder Fats absorbed from small intestine Submit Question 12: The swelling of lymph nodes during infection happens because: They store urine They are actively producing and storing immune cells They stop filtering lymph They store bile Submit Question 13: Which of the following is NOT part of the immune system? White blood cells Red blood cells Skin Lymph nodes Submit Question 14: What is an antigen? A substance that triggers immune response A type of bone A digestive enzyme A waste product Submit Question 15: Which of these is an example of a communicable disease? Rickets Measles Goitre Diabetes Submit Question 16: A disease that spreads through contaminated water is: Rickets Cholera Asthma Scurvy Submit Question 17: The best immediate practice to prevent spread of many infections is: Sleeping less Eating more sugar Avoiding water Washing hands with soap Submit Question 18: Which barrier in the respiratory tract traps dust and germs? Bile Mucus and cilia Alveoli only RBCs Submit Question 19: The acidic nature of stomach juice helps immunity by: Preventing digestion Growing bacteria faster Killing many microbes in food Increasing blood sugar Submit Question 20: Vaccines are generally made from: Pure glucose Bile salts Weakened or inactivated pathogens or their parts Bone marrow Submit Previous Next
