Edexcel GCSE Biology

Topic Questions

GCSEBiologyEdexcelTopic Questions9. Ecosystems & Material Cycles9.5 Food Production

9.5 Food Production

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1a
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Which of the following is the correct definition for a sustainable resource?

  ☐ A A resource that can be replaced.
  ☐ B A resource that is running out.
  ☐ C Making sure that needs are met for future generations.
  ☐ D A resource that can be replenished as quickly as it is used.

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1b
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Fish are the largest traded food commodity in the world, with over 3 billion people relying on fish as their main protein source.

There is a high level concern regarding the decline of fish stocks as a result of overfishing worldwide. Many governments are trying to bring in measures to ensure that fishing is sustainable. 

Suggest what is meant by sustainable fishing.

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1c
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Figure 1 shows an example of a food chain in the Atlantic Ocean.

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Figure 1

Discuss the impact that would be caused by the extinction of cod in the Atlantic Ocean.

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1d
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Describe and explain one different fishing technique which could be used to promote the recovery of fish stocks.

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2a
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Pigs can be farmed intensively for food production.

Intensive farming is just one way in which modern farming techniques are attempting to address food security.

Explain what is meant by the term 'food security'

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2b
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The number of individuals following a plant-only diet has increased rapidly over the last ten years.

Figure 1 shows how the number of internet searches for ‘plant-only diet’ from individuals in the UK compares to the rest of the World.

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Figure 1

Calculate the percentage change in the number of individuals from the UK searching for ‘plant-only diet’ on the internet from 2009 to 2019.

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2c
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The amount of energy required to produce 1kg of several different food products is shown in Figure 1.

energy-per-kg-sustainable-farming-sq

Figure 1

How does this data support the idea that a plant based diet is more sustainable than a meat based diet.

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2d
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In many places worldwide, there is a lack of food security.

Those that follow a plant-only diet argue that if we all stopped eating meat, there would be less poverty and higher levels of food security for everyone.

Suggest one reason why.

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3a
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Identify three biological factors that provide a threat to food security.

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3b
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Increased food production to protect food security can cause conflict with maintaining biodiversity.

Explain how.

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1a
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What is meant by the term food security?

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1b
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Beef cattle and fish are two sources of protein farmed for human consumption.

Figure 1 shows the changes in global production of beef cattle and farmed fish since 1950.

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Figure 1
(i)
Describe the changes in the global production of farmed fish and beef cattle since 1950.
(3)
(ii)
Suggest a reason for the changes described in part (i).
(2)
(iii)
In 2024, the production of farmed fish is expected to be eight times greater than in 1990.

Calculate the mass of farmed fish expected to be produced in 2024.
(2)

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2a
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Suggest two advantages of fish farming compared to catching fish in the wild.

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2b
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Figure 1 shows the differences in food security across several regions.

 
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Figure 1 
(i)
Describe what is meant by the axis label in Figure 1: 'percentage of the population suffering from food insecurity'.
(1)
(ii)
Use Figure 1 to compare changes in food insecurity between Africa and Oceania.
(3) 

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3a
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Discuss the key factors which may result in a threat to food security in a developing country.

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3b
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In order to maintain food security, sustainable methods of farming and food production are necessary.

(i)
Explain what is meant by sustainable methods.
(2)
(ii)
In order to maintain sustainability of the fishing trade, fishing quotas have been imposed and fishermen are required to only remove fish exceeding a certain mass.

Suggest how introducing fishing quotas and minimum masses of captured fish ensures fishing is carried out sustainably.
(2) 

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4a
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The increasing human population is affecting farming and the habitats of animals.

Figure 1 shows the human population of the UK from 1960 to 2018.fig-12-1bio-2f-june19-qp-gcse-bio

Figure 1

Extend the line to estimate the human population of the UK in 2030 if this trend continues.

................................... million

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4b
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Food security means that a population has enough safe and healthy food.

Which of these would improve food security?

  ☐ A increased reforestation
  ☐ B increased animal farming
  ☐ C increased human population
  ☐ D increased crop yield

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4c
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A scientist tested three samples of different foods.

Figure 2 shows the results.

food
sample		 result of adding
iodine solution		 result of boiling
with Benedict’s
solution		 result of adding
Biuret solution		 result of
emulsion test
E black blue blue clear
F brown orange purple clear
G brown orange purple cloudy


Figure 2

(i)
Name the food group in sample E.
(1)
(ii)
Name the food groups in sample F.
(1)
(iii)
The emulsion test shows that food sample G contained fat.
Describe how fat is digested in the body.

(2)

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4d
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Figure 3 shows a field of a crop in one area of Africa.

The crop cannot be eaten by people.

The crop is used to produce biofuel.fig-14-1bio-2f-june19-qp-gcse-bio

Figure 3

Describe the advantages and disadvantages of growing this crop to produce biofuel.

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