Food Production - exam practice
Food Production
Question 1 of 5
It is important to conserve fish stocks.
The image below shows a traditional fishing net and a new type of fishing net called SafetyNet.
SafetyNet has holes formed by LED light rigid rings.
Describe how SafetyNet helps to conserve fish stocks.
State one other way of reducing overfishing.
Why should fish stocks be kept above a certain minimum level?
Fish can be grown in fish farms.
Fish farms are large cages in the sea.
Suggest why fish grown in cages grow faster than fish of the same species free in the sea.
Suggest two reasons why more of our fish are supplied by fish farming rather than from traditional fishing.
Penicillin is produced commercially in fermenters.
Penicillin is a substance that kills bacteria.
What is the name given to substances that kill bacteria?
Name the type of microorganism that produces penicillin.
The graph shows changes in glucose concentration, oxygen concentration, and penicillin concentration inside the fermenter during the production of penicillin.
State the day in which the production of penicillin was fastest.
Describe how the concentration of glucose in the fermenter changes on the first day.
Farming techniques have evolved in the last decades.
Give three reasons why more land is being used for farming.
Describe how increased farming has decreased biodiversity and increased atmospheric pollution.
Scientists are increasingly concerned about food security.
Which of the following statements correctly describes food security?
Which of these would improve food security?
Explain how a large increase in the mass of meat eaten will decrease food security in the future.
Some areas in developing countries are used to grow crops that cannot be eaten by people.
The crops are used to produce biofuel.
Describe the advantages and disadvantages of growing these crops to produce biofuel.