B1c - Staying Healthy 0.0 / 5 ? BiologyHealthy livingGCSEOCR Created by: natalie27Created on: 24-11-13 11:49 891063147 Across 1. A bacterium which has become resistant to most antibiotics, making it a dangerous microorganism. (4) 3. An inactive pill given to volunteers when testing a new drug to test for the effects. (7) 4. A non-infectious disease caused by mutations in living cells. (6) 7. Type of white blood cell that move around the blood stream searching for pathogens. When they find some they engulf and digest them. (10) Down 1. A disease caused by a protozoan, which is a parasite. In this case, the parasites live off the hosts, which are humans. (7) 3. Type of immunity. Occurs when antibodies are put into an individual's body. They will not have long-term protection against the pathogen because their white blood cells did not produce the antibody themselves. (7) 6. Disease-causing micro-organisms e.g. fungi, viruses, bacteria, protozoa. (9) 8. Type of immunity. Can be achieved through a vaccination. White blood cell recognise the pathogen and can produce antibodies much quicker. (6) 9. Type of white blood cell that recognise molecular markers called antigens on the surface of the pathogen and produce antibodies that lock onto the antigens and kill the pathogens. (11) 10. Drugs that kill the pathogens. Diseases caused by bacteria or fungi (not viruses) can be treated using these. (11)
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