Biochemistry revision

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What is the class of sugars that cannot be hydrolysed to give a simpler sugar?
Monosaccharides
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Carbohydrates are a main source of,,,,,,(WHAT),,,,,,,,,,,, ?
Energy
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A ketone is found .........(where in a molecule)................?
Middle of the molecule
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A aldehyde is found ..............(where in a molecule)........?
End of the molecule
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What is a funtional group?
A group of atoms responsible for the characteristic reactions of a particular compound.
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Starch is a carbohydrate found in.......(what organism)...............
Plants
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Glycogen is a carbohydrate found in.............(what organism/s)
Animals
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(CH2O)n is the formula for which carbohydrate unit?
Monosaccharides
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When glucose changes from chain form to cyclical form which number carbons are attached to each other?
Carbon 5 and carbon 2
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When Fructose changes from chain form to cyclical form which number carbons are attached to each other?
Carbon 5 and carbon 2
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All monosaccharides which contain ketone groups are known as ..........
Ketoses
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All monosaccharides which contain aldehyde groups are known as..........
Aldoses
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What reducing agent is commonly used in reducing sugars practicals? And what colour is produced?
Benedict's Solution and Red
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Give an example of a non reducing sugar?
Sucrose
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When an alpha glucose is joined to another alpha glucose what is the disaccharide formed?
Maltose
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What is the bond called when two monosaccharides are joined together?
Glycosidic bond
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In the formation of the disaccharide maltose what are the carbons that cause the glycosidic bond?
Carbon 1 and carbon 4
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In the formation of the disaccharide sucrose what are the carbons that cause the glycosidic bond?
Carbon 1 and Carbon 2
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When monosaccharides form long chains they become..............?
Polysaccharides
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Give three examples of Polysaccharides
1. Starch 2.Amylose 3.Cellulose
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In starch and glycogen the carbon 1-4 linkage causes the a bent structure to form. This is ideal for ..............
Storage
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Out of amylose and glycogen name which is linear and which is branched in structure?
Glycogen is branched, amylose is linear
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In cellulose the carbon (beta) 1-4 linkages causes a linear structure to form. This is ideal for ............?
Structural purposes
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When a glycosidic bond is formed, what molecule is released?
Water
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Once a disaccharide is formed, a ................ reaction has occurred eliminating a water molecule.
Condensation
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Other cards in this set

Card 2

Front

Carbohydrates are a main source of,,,,,,(WHAT),,,,,,,,,,,, ?

Back

Energy

Card 3

Front

A ketone is found .........(where in a molecule)................?

Back

Preview of the front of card 3

Card 4

Front

A aldehyde is found ..............(where in a molecule)........?

Back

Preview of the front of card 4

Card 5

Front

What is a funtional group?

Back

Preview of the front of card 5
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