Biology- Medicine and antibiotics 0.0 / 5 ? BiologyMedicine and drugsGCSEAQA Created by: Chloehoughton15Created on: 14-05-17 17:32 What are painkillers? Drugs that relieve pain, dont kill pathogens or tackle the disease. 1 of 17 What are antibiotics? Drugs that kill or prevent the growth of bacteria without killing your own body cells. 2 of 17 What is bacteria grown in? A culture medium which contains carbohydrates, minerals, proteins and vitamins 3 of 17 Why must petri dishes and culture media be sterilised before use? To kill any unwanted microorganisms. 4 of 17 Why must the lid of the petri dish be lightly taped on? To stop microorganisms from the air getting in. 5 of 17 Why in schools must cultures of microorganisms not be kept in temperatures over 25c ? Because harmful pathogens are more likely to grow above this temperature. 6 of 17 How often can bacteria multiply if given the correct nutrients? Once every 20 mins. 7 of 17 what is the plant growth hormone called? Auxin 8 of 17 What is Phototropism? The plants response to light. 9 of 17 What is geotropism? The plants response to gravity. 10 of 17 Where is Auxin produced? In the tips. 11 of 17 What happens if the tip of a root is removed? There will be no auxin avaliable and the shoot may stop growing. 12 of 17 What happens when a tip is exposed to light? More auxin accumulates on the side thats in the shade. 13 of 17 What are Gibberellins imporant for? Initating seed germination. 14 of 17 What is Ethene important for? Contols cell division and ripening of fruits. 15 of 17 What are the uses for auxin? weed killers, rooting powders, promoting growth in tissue culture. 16 of 17 What are the uses for Gibberellins? End seed dormancy, promote flowering and increase fruit size. 17 of 17
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