Carbohydrates

?
how much do they make up of our body?
1-2%
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why do we need carbohydrates in our diet?
They are our first source of energy for our body and without it protein will be used from our muscles meaning our body is effectively eating its own muscles away
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state the functions
provide us with lots of energy, regulation of glucose converted to glycogen for energy
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what are they needed for?
physical acitivity, brain functioning, operation of organs, cells and tissues help intestinal health and digestive system
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whats a bad function?
provide sweetness to foods we eat and prevent the breakdown of proteins for energy
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give an example of the bad function
during high intensity exercise if you consume all your energy from carbs your body will use protein therefore there will be none left for repair of muscles and cells leading to wastage
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state the two types of carbohydrates
simple and complex
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what are simple carbs?
also known as simple sugars are found in fruits, vegetables and milk
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what are complex carbs?
reffered to as starch found in whole grain breads, cereals and starchy vegetables
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state one main difference of simple and complex carbohydrates?
complex raises blood sugar more slowly than simple carbs
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state example when you would eat simple carbs
if you were running a marathon you would want alot of energy throughout the run
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what do most complex carbs contain
fibre which helps with digestive health which help lower cholesterol and decrease risk of heart disease
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health risks associating with eating too many carbs
type 2 diabetes, dental caries, obesity, heart disease
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two types sugars
intrinsic and free sugars
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what are intrinsic sugars
are enclosed and locked inside cell structure for example whole fruits
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what are free sugars
present in honeys, syrups, fruits and vegetables they are added in during food manufacturing more likley to lead to tooth decay
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naturally occuring sugars
found naturally occuring in fruits
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state carbohydrates three macro nutrients
monosaccarides, disaccarides, polysaccarides
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what are monosaccarides?
are the simplest molecules made up of one sugar molecule.Most commonly found in glucose, fructose and galactose
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what are dissacarides?
two molecules joined together one molecule is water. Used for lactose because milk from mammals and products are made from it
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what are dissacarides also?
a confectionary cereals are made from maltose where barley can be added to breakfast cereals
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what are polysaccarides?
mixture of substances mainly complex
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what cant polysaccarides do/
cant be digested in the small intestine
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give an example of polysaccaride that cant be digested in small intestine?
cellulose, pectin and guar gum found in fruits, veg beans and cereals
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function cellulose, pectin and guar gum
converted to dextrin when making breads help set jams when sucrose is extracted from sugar cane and sugar beet
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chemical structure
made up of carbon, hydrogen and oxygen atoms
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1g of carbohydrate equals
3.75 calories
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how much fibres reccommended for adults
30g
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how much fibre for children
15-20g
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difference between visible and non visible fats
visible fats easily seen and identified non- visible cant be separated from foods
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examples visible fat
fats and oils, which include salad and cooking oils, butter, margarine and cream
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examples non visible fats
burgers, fries, pizzas, cheese
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are in- visible fats our main source of energy?
yes they are
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Other cards in this set

Card 2

Front

why do we need carbohydrates in our diet?

Back

They are our first source of energy for our body and without it protein will be used from our muscles meaning our body is effectively eating its own muscles away

Card 3

Front

state the functions

Back

Preview of the front of card 3

Card 4

Front

what are they needed for?

Back

Preview of the front of card 4

Card 5

Front

whats a bad function?

Back

Preview of the front of card 5
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