Food Preservation Technology — Practice Questions

Question 1

Food spoils mainly because of:

Accepted Answer

microorganisms growing on it — Microorganisms grow on food and spoil it.

Question 2

Putting food in a freezer preserves it by:

Accepted Answer

keeping it very cold so microorganisms cannot grow well — Freezing slows microorganisms greatly.

Question 3

Which of these is a food preservation method?

Accepted Answer

Drying — Drying removes water so food lasts longer.

Question 4

Salted fish lasts longer because salt:

Accepted Answer

stops microorganisms growing — Salt draws out water, so microorganisms cannot grow.

Question 5

Canning preserves food by sealing it after:

Accepted Answer

heating to kill microorganisms — Canning heats the food and seals it from air and germs.

Question 6

Why do we preserve food?

Accepted Answer

So it lasts longer and is not wasted — Preservation makes food last longer.