Question 1
Sugar and salt act as preservatives by
◦ drawing water out of microbes.
◦ producing oils that inhibit bacterial growth.
◦ inhibiting bacterial enzymes.
◦ inhibiting DNA replication.
◦ killing endospores.
Question 2
Which of the following methods of preserving food sterilizes it?
◦ pasteurization
◦ gamma radiation
◦ lyophilization
◦ canning
◦ drying