Carbohydrates Revision

1
Carbohydrates Revision

• No Carbs before Marbs!

2
Carbohydrates

• Monomer monosaccharide
• Monomer Monomer disaccharide
• Monomer Monomer Monomer polysaccharide

3
Monosaccharide glucose
CH2OH
O
C
H
H
H
C
C
OH
H
OH
HO
C
C
OH
H
4
Alpha (a) glucose
Beta (ß) glucose
5
Joining carbohydrate monomers
H20
Glycosidic bond
6
Breaking carbohydrate polymers
H20
7
Build these molecules using the molymods
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Identify starch, fructose, glucose and sucrose
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Glucose
Fructose
Starch
Sucrose
10
Glucose
Fructose
Now state the biochemical test used for each
Starch
Sucrose
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Benedicts and heat
Benedicts and heat
Now state the biochemical test used for each
Hydrolyse with HCL, neutralise, re test with
Benedicts
Iodine
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Do you know your mono, from your di, from your
poly?
13
1.
14
2.
15
3.
C
16
4.
17
5.
18
Carbohydrate Table
Monosaccharide Disaccharide Polysaccharide
Glucose Maltose Starch
Fructose Sucrose Glycogen
Galactose Lactose Cellulose