AQA GCSE Biology topic 3 Exam Questions and Answers

AQA GCSE Biology topic 3 Exam Questions and Answers Define pathogen - Answer️️ -Disease causing microorganism Define bacteria - Answer️️ -Single-celled organism that rapidly reproduces in human body releasing toxins and damaging cells Define virus - Answer️️ -Live and reproduce in cells bursting and damaging cells Define protist - Answer️️ -Eukaryote that live in or on another organism Define Fungi - Answer️️ -Single cells or hyphae that grow and penetrate human skin or surface of plants An example of a Pathogen that spreads via water - Answer️️ -Cholera Example of an airborne pathogen - Answer️️ -Influenza virus How disease spreads from coughs and sneezes - Answer️️ -Via droplets Example of a Pathogen spread by contact - Answer️️ -Athletes foot What is poultry vaccines against? - Answer️️ -Salmonella Symptoms of Measles - Answer️️ -Fever/red skin rash Vaccine for kids against measles - Answer️️ -MMR How is measles spread? - Answer️️ -droplets HIV - Answer️️ -human immunodeficiency virus HIV initial symptoms - Answer️️ -flu like How is HIV controlled? - Answer️️ -Antiretroviral drugs How does HIV spread? - Answer️️ -fluids TMV - Answer️️ -tobacco mosaic virus What does TMV do to plants? - Answer️️ -Mosaic dicouliring What does TMV effect? - Answer️️ -Photosynthesis Common food poisoning - Answer️️ -Salmonella How does Salmonella cause pain? - Answer️️ -Secretes toxin Symptoms of salmonella - Answer️️ -Fever, stomach cramps, vomiting and diarrhoea Gonnorhea symptoms - Answer️️ -Discharge,burning sensation How is gonnorhea spread? - Answer️️ -Sexualy Rose back spots symptoms - Answer️️ -purple and black spots and leaves fall early How is rose black spot spread? - Answer️️ -water and wind Malaria symptoms - Answer️️ -high fever/chills How is malaria spread? - Answer️️ -mosquitoes How can malaria be prevented? - Answer️️ -mosquito nets/incestisides Primary barrier that surround most of the human body - Answer️️ -Skin What does skin secrete as part of human defence - Answer️️ -antimicrobial substance How do hairs and mucus in the nose prevent disease? - Answer️️ -Trap potential pathogens