Aqa Gcse Biology - Paper 1 Already Passed

What does the small intestine do? {Ans: It contains protease, amylase and lipase to complete digestion. Digested food is absorbed into the blood here}Gonorrhoea {Ans: Bacterial disease Sexually transmitted disease (STD) caused by sexual contact e.g. unprotected sex Symptoms: pain when urinating; thick yellow/green discharge from the vagina/penis Originally treated with penicillin - now some strains have become resistant to it Treatment with antibiotics and using barrier methods of contraception (e.g. condoms) help prevent the spread of it}How are monoclonal antibodies used to locate specific molecules on a cell or in a tissue? {Ans: 1) Monoclonal antibodies are made that will bind to the specific molecule 2) The antibodies are then bound to a fluorescent dye 3) If the molecules are present in the sample being analysed, the monoclonal antibodies will attach to them - they can be detected using the dye}Salmonella {Ans: Bacteria that causes food poisoning by producing toxins Symptoms: fever, stomach cramps, vomiting and diarrhoea Caused by eating food contaminated with salmonella e.g. uncooked chicken In the UK, most chickens are vaccinated against salmonella}Drinking as a risk factor {Ans: Drinking too much alcohol causes liver disease, affects brain function and damages the