Science Series 2026 - Biology Human 0 Time Left: 8:00 Question 1: Why should antibiotics not be taken without prescription? They always cure viruses They are nutrients Misuse can cause antibiotic resistance They make bones stronger Submit Question 2: Antibiotic resistance means: Viruses become bacteria Bacteria no longer get killed by an antibiotic Antibodies stop working Bones lose calcium Submit Question 3: Which of these helps the immune system by producing antibodies? Red blood cells Lymphocytes Platelets Bone cells Submit Question 4: Pus at an infected wound mainly contains: Glucose crystals Dead white blood cells and microbes Bone fragments Bile pigments Submit Question 5: The immune response that acts immediately and is present from birth is called: Acquired immunity Artificial immunity only Innate immunity Passive immunity only Submit Question 6: Acquired immunity differs from innate immunity because it is: Present at birth Specific to particular pathogens Non-specific always Only in plants Submit Question 7: Which of these is an example of a physical barrier to infection? Antibiotic Skin Insulin Antibody Submit Question 8: The watery tears in eyes help protect by: Stopping blood flow Producing bile salts Increasing glucose Washing away dust and containing enzymes that kill germs Submit Question 9: Saliva helps protect the mouth by: Filtering blood Producing insulin Washing away microbes and containing enzymes Forming bones Submit Question 10: Which habit increases risk of infection spreading in a community? Not covering mouth while coughing Washing hands Vaccination Using clean water Submit Question 11: A vaccine is different from an antibiotic because a vaccine: Prevents disease by preparing immune system Is used to digest food Kills bacteria directly in the body Is used to filter blood Submit Question 12: The swelling and redness around a mosquito bite is mainly due to: Bone growth Gas exchange Kidney filtration Local immune reaction Submit Question 13: Which of these practices best supports a healthy immune system? Never washing hands Only eating fats Avoiding all water Balanced diet, sleep and exercise Submit Question 14: Which of these is an example of a non-communicable disease? Measles Common cold Chickenpox Diabetes Submit Question 15: The lymphatic system returns extra fluid from tissues back to the: Bloodstream Lungs only Bones Stomach Submit Question 16: Which of these statements is correct about white blood cells? They produce bile They can move out of blood vessels to fight infection They form hard bones They carry oxygen Submit Question 17: Which part of blood is mainly involved in carrying antibodies? Cartilage Platelets Red blood cells Plasma Submit Question 18: A student says 'vaccines cure diseases instantly'. The correct explanation is: Vaccines are antibiotics Vaccines are painkillers Vaccines are nutrients Vaccines build immunity; they are mainly preventive Submit Question 19: Which of these is a correct reason why fever should be monitored? Very high fever can be harmful even though mild fever can help Fever increases bone length Fever stops immunity Fever always improves digestion Submit Question 20: Which of the following is a safe health practice to reduce disease spread in Public? Not washing hands before eating Staying home when seriously ill and following hygiene Sharing water bottles Spitting in public Submit Previous Next
