Lesson 5

Question 1

What bacteria causes the spoilage of food?

Answer 1

Undesirable bacteria

Question 2

Underfavorable conditions bacteria can double their population every 20 to 30 minutes. Which of the following would provide favorable growth conditions for bacteria?

Answer 2

Cooked pork stored at 80F

Question 3

At what temperature is rapid growth of pathogenic bacteriapossible?

Answer 3

65F

Question 4

In which of the following foods bacteria may grow rapidly?

Answer 4

Low acid and neutral foods

Question 5

What type of bacteria grows best at temperatures between 50°-110°F?

Answer 5

Mesophilic bacteria

Question 6

It may be necessary to remove foods from refrigeration during preparation and seasoning of foods. This process:

Answer 6

Must be done as rapidly as possible

Question 7

Which of the following is true regarding water activity level?

Answer 7

Water activity is a measure of the available water in the food for biological activity

Question 8

Which of the following statements regarding foods that have a very low water activity is true?

Answer 8

Such foods will have a long shelf life, such foods are safer, and both pathogenic and undesirable bacteria will be unable to reproduce on these foods.

Question 9

Which of the following statements regarding bacteria is true?

Answer 9

Pathogenic bacteria cause disease in man

Question 10

11. Which of the following foods would likely be the most shelf stable?

Answer 10

Instant coffee

Question 11

Which of the following food is the least shelf stable?

Answer 11

Fresh meats