INFECTION AND RESPONSE - Bacterial Diseases

Question 1

Bacteria

Answer 1

May damage cells directly or produce toxins (poisons) that damage tissues

Question 2

Salmonella

Answer 2

Type of food poisoning caused by bacteria. Spread by bacteria ingested in food or on food prepared in unhygienic conditions. Bacteria secretes toxins which cause fever abdominal cramps, vomitig and diarrhoea. Chickens and eggs contain bacteria so chicken in UK are vaccinated against salmonella

Question 3

Gonorrhoea

Answer 3

Sexually transmitted disease (STD) caused by bacteria. Spread by sexual contact. Symptoms are thick, yellow or green discharge from vagina or penis and pain while urinating. It was easily treated with the antibiotic penicillin until many resistant strains appeared. Use of barrier method of contraception e.g condom can stop bacteria being passed on