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GCSE AQA Bio Topic 3

GCSE Infection and Response (Topic 3 AQA Combined Science) Flashcards

QuestionAnswer
What type of pathogen is Rose Black Spot? Fungus
2 ways Rose Black Spot is spread 1. Water 2. Wind
2 Symptoms of Rose Black Spot 1. Reduced growth 2. Purple/black spots on leaves can turn yellow and drop off
Prevention/ treatment for Rose Black Spot (2 ways) 1. Removing and destroying infected leaves 2. Fungicides
What type of pathogen is Malaria? 2. Protist
How is Malaria spread? Mosquito vectors
Prevention/ treatment for Malaria (2 ways) 1. Mosquito nets 2. Stop mosquitoes from breeding
What type of pathogen is Salmonella Bacterium
How is Salmonella spread? Eating contaminated food
4 Symptoms of Salmonella? 1. Fever 2. Stomach cramps 3. Vomitting 4. Diarrhoea
Prevention/ treatment for Salmonella (2 ways) 1. Vaccination of poultry 2. Hygenic food preparation
What type of pathogen is Gonorrhoea? Bacterium
How is Gonorrhoea spread? Sexual contact
2 Symptoms of Gonorrhoea 1. Pain when urinating 2. Yellow/green discharge from vagina or penis
Prevention/ treatment for Gonorrhoea (2 ways) 1. Condoms 2. Antibiotics
What type of pathogen is Measles? Virus
How is Measles spread? Airborne droplets
3 Symptoms of Measles 1. Fever 2. Red skin rash 3. Can be fatal
What type of pathogen is HIV? Virus
How is HIV spread (2 ways)? 1. Sexual contact 2. Exchanging bodily fluids
2 Symptoms of HIV 1. Initially flu-like 2. A damaged immune system
What type of pathogen is Tobacco Mosaic Virus? Virus
Symptoms of Tobacco Mosaic Virus Mosaic patterns on leaves, which reduces photosynthesis and growth
How does skin help fight diseases? Acts as a barrier and secrets antimicrobial substances to kill pathogens
How does the nose help fight diseases? Hairs and mucus trap particles containing pathogens
How does the stomach help fight diseases? Hydrochloric acid kills pathogens
How does the trachea and bronchi help fight diseases? Mucus traps pathogens, and cilia waft mucus up to the throat so that it can be swallowed
3 ways White Blood Cells attack pathogens 1. Phagocytosis 2. Producing antibodies 3. Producing antitoxins
What type of drug is Digitalis and where is it obtained from? Heart drug and it is obtained from Foxgloves
What type of drug is Aspirin and where is it obtained from? Painkiller and it is obtained from Willow
What type of drug is Peniciliin and where is it obtained from? Antibiotic and it is obtained from Penicillium mould
New drugs are tested for what 3 things? 1. Toxicity 2. Efficacy 3. Dosage
6 signs of plant disease 1. Stunted growth 2. Spots on leaves 3. Discolouration 4. Pattches of decay 5. Malformed stems or leaves 6. Abnormal growths
3 ways to identify plant disease 1. Look things up in a gardening manual 2. Take the infected plant to a lab, where scientists can identify the pathogen 3. Use testing kits that identify the pathogen using monoclonal antibodies
3 Physical plant defences 1. Waxy cuticle 2. Layers of dead cells around stems Cellulose cell walls
3 Mechanical plant defences 1. Thorns and hairs - stop animals touching plants 2. Leaves that droop or curl when touched - knocks insects off 3. Plants mimic other organsisms - trick animals into not eating them
2 Chemical plant defences 1. Antibacterial chemicals kill bacteria and prevent disease 2. Some plants produce poisons to deter herbivores
Created by: Jascelectronic
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