B7: FOOD SECURITY

Question 1

What are the factors which threaten food security?

Answer 1

-increasing birth rate in developing countries
-changing diets in developed countries (scarce food resources transported around the world)
-new pests/pathogens (loss of crops meaning less food available which leads to cost of food increasing)
-environmental changes (eg: widespread famine)
-cost of agricultural inputs (eg: cost of caring for livestock)
-conflict

Question 2

Modern intensive farming

Answer 2

-efficiency of food production improved by restricting energy transfer from animals to the environment:
-restricting movement - decreases energy used for movement
-controlling temp - decreases energy used for maintain body temp
-high protein diet

Question 3

Advs of modern intensive farming

Answer 3

-increases food security as it decreases energy used up for other things so more energy is used for growth
-increases efficiency
-cheaper food

Question 4

Disadvs of modern intensive farming

Answer 4

-animal welfare/abuse
-meat may be lower quality due to increase in fat
-costs of maintaining temp in controlled environment

Question 5

How are fish stocks conserved?

Answer 5

-control of net size
-introduction of fishing quotas

Question 6

What is mycoprotein and what is it used for ?

Answer 6

-a protein generated from fungi
-used to produce high-protein meat substitutes

Question 7

What is the name of the fungus used to produce mycrpotein?

Answer 7

fusarium