11B2 0.0 / 5 ? Science11b2GCSEAll boards Created by: Harvey334Created on: 23-03-18 07:21 Why can't we treat viruses with antibiotics? Would kill healthy tissues 1 of 16 What is a Eukaryotic organism? Has a nucleus e.g virus 2 of 16 what is a Prokaryotic organism? Has no nucleus e.g Bacteria 3 of 16 What is a placebo drug? A test group where the subject does not know what they are receiving (Removes the Placebo effect) 4 of 16 What is a doube-blind trial? Neither subject nor researchers know what drug they have received (removes bias) 5 of 16 What is the Placebo effect? People thinking they are meant to get better so physiologically think they are 6 of 16 What are phagocytes? Type of white blood cell that ingests harmful pathogens 7 of 16 Name 3 first lines of defence in the immune system Skin, Mucus, Nasal Hair 8 of 16 What are platelets? cells fragments used to clot open wounds 9 of 16 What is the binomial system to class animals? Classes animals on [Genus] then [Species] 10 of 16 What was carl woese's sytem? divides cellular life forms into archaea, bacteria, and eukaryote DOMAINS 11 of 16 Why did classification change? Microscopes allowed us to see cells with and without a necleus 12 of 16 What are antigens and why are they specific? Antigens induce a immune system response to disease. They are developed specially for each individual disease type as of contact. 13 of 16 What are antitoxins? An antibody which sticks to and neutralises harmful toxins made from pathogens 14 of 16 Key difference of bacteria and a virus (besides necleus) Virus' hijacks cells DNA (why so dangerous) Bacteria lives of our bodies resources 15 of 16 What are antibodies? Y-Shaped proteins that cling on to pathogens to sterilize or neutralise them 16 of 16
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