Food source and supply Flashcards
List 5 advantages of locally produced food.
- Fresher, and therefore tastier
- Fewer food miles, so it is better for the environment
- Reduced carbon footprint
- Less energy used in transporting
- Supports local farmers, and their produce can be cheap
List 4 disadvantages of locally produced and seasonal food.
- May not be as much choice, as seasonal foods are not available all year round
- Some people do not like the food being different sizes
- Is sometimes more expensive
- Unpackaged or unpreserved foods spoil faster
List 4 types of foods that are grown.
- Cereals
- Sugars (sugar cane and beet, honey, maple syrup)
- Fruits
- Vegetables
What is intensive farming?
- It uses methods of farming that produce a large yield from a relatively small area of land
- It is also known as conventional farming or ‘factory farming’
- It relies heavily on chemical fertilisers and pesticides
- It also includes growing high-yield crops in very large fields
- Many crops are grown intensively in greenhouses, such as tomatoes
- Recently hydroponic systems (food is grown in nutrient solution instead of soil) have been started to be used
What 3 are concerns people have about intensive farming, and what causes them?
The use of artificial fertilisers and pesticides, as they can:
- harm wildlife
- damage the environment (such as by polluting rivers)
- possibly have an impact on human health too
What is organic farming?
- Farming naturally without using artificial fertilisers or pesticides
- It is done following strict laws, and is monitored and later certified by an organic association, such as the Soil Association
- Organic matter like manure and compost are used instead of artificial fertilisers
- Instead of using pesticides, farmers use biological pesticides such as fungi, and other methods such as introducing a pest’s predators
- Produce contains no genetically engineered ingredients
List 5 advantages of organic farming.
- It reduces the use of chemical pesticides, so reduces damage done to the environment
- Fewer non-renewable resources are used than in intensive farming, so it’s more sustainable
It appeals to customers who: - are concerned about the environment
- are concerned about the impact of chemical pesticides on human health
- believe organic food tastes better
List 2 disadvantages of organic farming.
- It produces a lower yield than intensive farming
- It has higher production costs, so organic produce is more expensive
List 5 types of cereals and where they’re grown.
- Wheat, Europe
- Rice, China
- Barley, Russia
- Oats, Russia
- Rye, Europe
Describe the 3 parts of the structure of a cell of a fruit.
- Cell wall made of cellulose
- Cytoplasm made of colour pigments and fat droplets
- Vacuole (largest part of the cell) contains sugar, pigments and salts
What do the colours of vegetables depend on?
- Chlorophyll: green
- Carotenoids: yellow and orange
- Anthocyanins: red and blue (beetroot, red cabbage)
How are fruits classified? Give 2 examples from each category.
They typically develop from a flowering plant and contain seeds.
- Citrus: grapefruit and oranges
- Soft/ berry fruits: blueberries and blackcurrants
- Hard: apples and pears
- Other: bananas and melons
How are vegetables classified? Give 2 examples from each category.
By the area if the plant they come from.
- Leaves: spinach and lettuce
- Fruit: tomatoes and peppers
- Roots: carrots and turnips
- Flowers: cauliflower and broccoli
- Bulbs: onions and shallots
- Stems: celery and asparagus
- Tubers: potatoes and sweet potatoes
- Seeds/ pods: peas, sweetcorn
What are the 2 different ways animals can be reared?
- Factory-farmed animals
- Free-range animals
How does this differ for egg production?
There are:
- enriched cages
- barn egg
- free range
- organic
