Slides in this set

Slide 1

Preview of page 1

Carbohydrates, fat, protein, vitamins,
minerals, fibre and water…read more

Slide 2

Preview of page 2

group of foods containing carbon, hydrogen and oxygen in same proportion found in water. Used
a source of energy by the body.
· Provides energy
· Carbohydrate digested, converted into glucose ­ found in
· Extra glucose converted into glycogen ­ found in
Divided into 3 groups according to size:
1. MONOSACCHARIDES: Simplest carb molecules ­ e.g.
fructose and glucose
2. DISACCHARIDES: Sugar formed when 2 monosaccharides join
with removal of 1 H2O molecule ­ e.g. sucrose, lactose, maltose
3. POLYSACCHARIDES: many joined monosaccharides ­ e.g.
starchm glycogen, cellulose…read more

Slide 3

Preview of page 3

Group of foods containing carbon, hydrogen and oxygen used as energy during rest and low intensity
· Building blocks are fatty acids and glycerol
· Fatty acid with all hydrogen atoms: saturated
· Fatty acid with missing hydrogen atoms
replaced by double bonds: unsaturated
· One double bond: monounsaturated
· More than 1 double bond: polyunsaturated
· 3 fatty acids + 1 glycerol = triglyceride
· Carries fat-soluble vitamins A,D,E,K…read more

Slide 4

Preview of page 4

complex group of amino-acid containing foods, used for growth and repair and as a minor energy source
· Main sources: fish,egg,milk,cheese,nuts
· Amino-acids are protein building blocks, contain
carbon, hydrogen, oxygen, nitrogen and sometimes
· 20 different amino-acids
· Protein eaten, broken down in amino-acids, absorbed,
used to make other proteins in body
· human body makes some own amino-acids; non-
essential amino-acids
· Human body cant make some amino-acids; essential
· Protein necessary for growth & repair of body tissues
· Minor energy source…read more

Slide 5

Preview of page 5

· Major sources of dietary fibre are whole-grain
and high-fibre cereals and bread
· Dietary fibre act as bulking agent
· Relives constipation
· Large amounts of some fibre help reduce
blood cholesterol
· Help diabetics reduce blood glucose levels…read more

Slide 6

Preview of page 6

Inorganic chemicals required for body functions such as bone growth, energy metabolism and nerve
Help with:
· Formation of bones and teeth
· Essential constituents of body fluids & tissues
· Components of enzyme systems
· Nerve functions
E.g. calcium, magnesium, phosphorus, sodium,
potassium, iron, iodine…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Physical Education resources:

See all Physical Education resources »