Food and Nutrition - GCSE Chapter 1

  • Created by: taryn.
  • Created on: 11-04-17 15:03
What is a balanced diet?
Contains all nutrients in correct amounts
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Factors which affect nutritional requirements...
Age, gender, PAL, pregnancy and breastfeeding, babies, illness and recovery from operations
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What are the macronutrients?
Proteins, fats and carbohyrates
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Proteins are made up of...
long chains of amino acids
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There are approximately __ known amino acids, __ of which are essential for children and _ are essential for adults.
22, 10, 8
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Essential amino acids are called...
indispensable
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What are novel-proteins?
grown from micro-organisms which produce mycoprotein
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Protein complementation...
eating different vegetable proteins foods together - e.g cheese on toast
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HBV - High Biological Value proteins...
animal proteins that contain all of the indispensable amino acids
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LBV - Low Biological Proteins
vegetable proteins that lack one or more of these indispensable amino acids
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Fat soluble vitamins are...
A, D, E, K
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Saturated fatty acids...
from animal food sources - have no double bonds
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Unsaturated fatty acids...
from vegetable sources - have two or more double bonds
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What are fats made up of?
fatty acids and glycerol
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Carbohydrates are _____________ source of energy?
cheapest
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Carbohydrates are broken down into...
glucose
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Protein sparing...
carbohydrates eaten with proteins - to allow proteins to be used for growth and repair rather than energy (coz proteins are more £)
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Carbohydrates should contain __% of total energy intake, with no more than __% from sugars
50%, 11%
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Non-starch polysaccharide (NSP) - also known as dietary fibre...
the indigestable fibrous structure of plants
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3 types of carbohydrates are...
sugars, starches, NSP
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Which vitamin helps absorb calcium?
Vitamin D
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What % of the body is made up of water?
70%
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Saliva in the mouth contains a digestive enzyme called...
salivary amylase
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Malnutrition is...
lack of particular nutrients in the diet
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Antioxidant vitamins are...
A, C and E
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Other cards in this set

Card 2

Front

Factors which affect nutritional requirements...

Back

Age, gender, PAL, pregnancy and breastfeeding, babies, illness and recovery from operations

Card 3

Front

What are the macronutrients?

Back

Preview of the front of card 3

Card 4

Front

Proteins are made up of...

Back

Preview of the front of card 4

Card 5

Front

There are approximately __ known amino acids, __ of which are essential for children and _ are essential for adults.

Back

Preview of the front of card 5
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taryn.

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