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OCR Cambridge Technical in
ScienceLevel 2
UNIT 7:FOOD PRODUCTION
What’s so important about food production?
Learning about how food is produced is important.
With the world’s
population rising and land being stretched
to breaking point,
…it is more important than ever to think about how we feed ourselves.
Farming methodsSome have been around since farming began,
some are modern, innovative ways to maximise profit and yield.
Different farmers use different methods to produce food.
rare breedsorganichydroponicintensive
Harnessing the SunPlants grow by using the
Sun’s energy to make food from water and
carbon dioxide.
This knowledge of how plants grow enables commercial food growers to manipulate the
growing conditions of plants to maximise growth.
This process is called
photosynthesis.
Manipulating growing conditions is an
application of science within food production
and re-capping photosynthesis will
enable you to understand how this
works.
Harnessing the Sun
How do plants grow?Limiting factors are something that, if missing or
inadequate can prevent or stall a plant’s growth.
Limiting factors are:
Light
Carbon dioxide
Temperature
What affects food production?
The use of commercial fertilisers ensures there is enough food, without them people would starve.
What affects food production?
Pesticides prevent crops being lost to insects or diseases.
Both have an environmental cost, but not to use them has a human cost.
Can the two balance?
What affects food production?
From field to supermarket shelf
Once your food has been harvested, how is it prepared for sale?
How does it stay edible in the time it takes to get to your plate?
You will need to look at how food spoils and how this can be prevented using both traditional and
innovative methods of food preservation.
Not all food is grown locally. To ensure a year round supply of our favourite foods they are imported
from other countries.
Is your food better travelled than you?
You will find out the consequences of this
transportation and what it means for
consumers, farmers and the
environment.
Is your food better travelled than you?
Can you give up strawberries for ten months of the year?
How about tomatoes?
Are there ways to make all crops viable in all countries?
Not all food is grown locally. To ensure a year round supply of our favourite foods they are imported
from other countries.
The role of science in food production
Science is no stranger to food production, having been used since agriculture began.
Are GM crops the future?
In recent years scientific research into food has been much more urgent with the increasing world
population to feed. How far can selective
breeding go?
What role can microorganism
s play in feeding the
world?
What will you learn?
How and why different practices
are used in commercial
farming.
About the role of innovative science in
addressing food production.
How food gets from the field to the supermarket.
The key factors that affect crop
production.
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OCR acknowledges the use of the following content: Slide 4 Combine harvester: Makaule/Shutterstock.com Slide 5 Cow: TonyV3112/Shutterstock.com, Hydroponics: Defpicture/Shutterstock.com, Organic farming: Yuris/Shutterstock.com, Intensive farming: federicofoto/Shutterstock.com Slides 6 and 7 Seedling: Triff/Shutterstock.com Slide 8 Four seedlings: Teerasak/Shutterstock.com Slides 9 and 11 Fertiliser: Kletr/Shutterstock.com Slides 10 and 11 Pesticide: Ra3rn/Shutterstock.com Slide 12 Mouldy bread: Marilyn Barbone/Shutterstock.com, Jars: Tomas Jasinskis/Shutterstock.com Slide 13 Apples: Alaettin Yildirim/Shutterstock.com Slide 14 Strawberries: Ninell/Shutterstock.com Slide 15 Pig: Panbazil/Shutterstock.com Slide 16 Man with seedling: CoraMax/Shutterstock.com
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