Food Production

Question 1

Why in the same amount of land can more energy be produced through crops than through animals?

Answer 1

Because there is a shorter food chain

Question 2

Why is there still a demand for meat?

Answer 2

Because it is to people’s taste

> varied diet

> not all land suitable for crops

Question 3

What is the purpose of the conditions of factory farming?

Answer 3

To help the animals grow as fast as possible

Question 4

What are the conditions of factory farming?

Answer 4

> they are confined to limit movement so less energy is used

> they are kept in warm conditions so less energy is lost

> this means that less energy is lost and they will grow more quickly

Question 5

What is are 3 advantages of factory farming?

Answer 5

> faster growth

> cheaper

> more food

Question 6

What are 3 disadvantages of factory farming?

Answer 6

> the animals are more likely to get ill if they are so close

> not economic as hearing requires electricity

> unethical to keep animals in such cramped stressful conditions

Question 7

Why is a shorter food chain more efficient?

Answer 7

Because energy is lost in each stage of the food chain through growth, heat and movement

Question 8

What is the disadvantage to free range farming?

Answer 8

The animals grow more slowly as they expend more energy moving and keeping warm

Question 9

How is the risk of extinction of fish due to fishing controlled?

Answer 9

> smaller nets

> quotas

> avoiding breeding grounds

> no fishing during mating season

> larger mesh

Question 10

How does larger mesh on fishing nets help to prevent extinction of fish due to overfishing?

Answer 10

> it allows the smaller underdeveloped fish to escape and reproduce before they are caught

Question 11

What does mycoprotein mean?

> give an example

Answer 11

Protein from fungus

> fusarium

Question 12

Why is it important that bacteria does not get into the fusarium fermenter?

Answer 12

So that it does not contaminate the fusarium

> so that it does not compete with the fusarium

Question 13

How does the fusarium fermenter make sure that bacteria does not enter the process?

Answer 13

> air filter for the incoming air

> fermenter sterilised by steam beforehand

> incoming nutrients sterilised

Question 14

Why is the temperature of the fusarium fermenter controlled and how?

Answer 14

There is a water cooling jacket

> higher than 35 degrees Celsius the fermentation begins to slow down

> the process releases a lot of heat

Question 15

What are the disadvantages of free range farming?

Answer 15

Expensive as:

> the animals require more food

> they grow more slowly

Question 16

What are the advantages of local food?

Answer 16

> less travel=less CO2 emissions

> less affect on global warming

Question 17

What are the disadvantages of local food?

Answer 17

> less availability of some food during winter

> conditions needed to grow some food during winter (e.g. Greenhouses) contributes to global warming

Question 18

Why is air fed into a mycoprotein fermenter?

Answer 18

> To mix the content

> to provide O2 for respiration

Question 19

What nutrients are fed into the mycoprotein fermenter and why?

Answer 19

> amino acids
-for protein synthesis

> glucose
-for respiration

> minerals
-for healthy growth

Question 20

What are two elements of the structure of a mycoprotein fermenter?

Answer 20

> cool water jacket ensures temperature does not rise higher than. 35 degrees
-counteract the heat produced by respiration

> temperature probe monitors temperature