AQA Biology Unit 1 0.0 / 5 ? BiologyHealthy livingGCSEAQA Created by: laurenmasihCreated on: 24-04-17 17:08 What diet factors release energy? Carbohydrates, proteins and fats 1 of 17 Without which two diet factors will a person develop a deficiency disease? Vitamins and minerals 2 of 17 Which is untrue? Men generally have lower metabolic rates because they have a higher proportion of muscle to fat than women 3 of 17 What is 'good cholesterol' used for? For cell membranes and to make vital substances 4 of 17 What is a pathogen? A microorganisim that causes disease 5 of 17 When bacteria and viruses enter the body they rapidly ................... Which word fills the missing gap? Reproduce 6 of 17 Which is correct? Semmelweiss discovered (before bacteria and viruses had been discovered) that infection could travel from person to person in a hospital. 7 of 17 White blood cells produce .................. to target a specific bacterium's ............... . Antibodies, antigens 8 of 17 Who discovered Penicillin and when? Fleming, 1928 9 of 17 Why are viruses difficult to kill? They take over the body's cells and treatment could damage the body (in an effort to kill the viruses) 10 of 17 At what temperature are cultures of bacteria incubated at? 25 degrees in schools, 35 degrees in industry 11 of 17 What is the culture medium used called (when growing bacterium)? Agar jelly 12 of 17 Which refers to a disease that spreads within a country? Epidemic 13 of 17 Which is true? Some pathogens, particularly viruses, can mutate resulting in a new form called a mutation which few people are immune to. 14 of 17 Do viruses have regular or irregular shapes? Regular 15 of 17 Each virus is a different shape. It's shape simply depends on it's function... True or false? False 16 of 17 Generally, why didn't Semmelweis' fellow doctors believe his theory? Bacteria and viruses had never been seen 17 of 17
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