Micro-organisms

Which of these is not a microbe?

• yeast

• bacteria

• virus

• mould

Which is not an example of cross contamination?

• Vegetables contaminated by bacteria in soil because they hadn't been washed properly

• A food handler using a red chopping board for raw chicken and then making sandwiches on the same board.

• Cooked meat contaminated by blood from raw meat that hasn't been cleaned off the surface.

• Food handlers getting bacteria on their hands from the fridge handle and then making pasta salads.

The most common cause of food poisoning is?

• pathogenic bacteria

• benign bacteria

• pathogenic yeasts

• benign moulds

Which of the following is not a usual source of bacteria?

• insects

• people

• rubbish

• cleaning chemicals

Which of these is a common symptom of food poisoning

• vomiting

• coughing

• sore throat

• aching muscles

Which is the optimum (best) temperature for bacterial growth?

• 37C

• 5C

• 63C

• 75C

The best pH for bacteria is?

• 6 - 8

• 2 - 5

• 9 - 12

• 4 - 10

Which is not a method of preventing bacterial growth?

• Keeping food at room temperature

• Keeping food at 5C

• Drying food

• Adding lots of sugar or salt to food

Which type of date marking is important for food safety

• use-by-date

• best-before-date

• sell-by-date

• production-date

Which of these is not a condition needed for microbes to grow and reproduce?

• oxygen

• time

• temperature

• moisture