Biology 12
Sec 2.5
Pg32-33
CLASSES OF ORGANIC MOLECULES
I. CARBOHYDRATES
Name: _______________
Date: _______________
Block: _____
Carbohydrates
General Function
Key Characteristics:
-molecules involved:
-ratio of molecules:
-general molecular formula:
-general structure:
Simple Carbohydrates
Examples
&
Structural Diagrams
Example of polymers
&
Structural Diagrams
i) Glucose: monosaccharide
Found in:
Used for:
Diagram:
ii) Fructose: monosaccharide
Found in:
Used for:
Diagram:
iii) Maltose: disaccharide
Found in:
Used for:
Diagram:
i) Starch
ii) Glycogen
Cellulose
Found in:
Used for:
Diagram:
Found in:
Used for:
Diagram:
Found in:
Used for:
Diagram:
CARBOHYDRATES Qs
1. The following diagram is a glucose molecule. At each point on the hexagon, there is a carbon molecule
(therefore six carbons in a molecule of glucose). Anytime you see this shape, you know it is related to sugar and carbohydrates.
a) Circle the points on the hexagon where carbon molecules exist (all except the one on the right has an O, for oxygen)
b) Is this molecule a hexose or pentose sugar? Explain the difference
c) Name 3 examples of hexose sugars______________________
d) Write the molecular formula for glucose and pentose:_____________
e)Explain the difference between a monosaccharide and a disaccharide:
2.a) Draw the condensation synthesis and hydrolysis of maltose (see Fig 2.18)
b) Explain the difference between a synthesis condensation reaction and a hydrolysis reactions.
c) What do both types of reactions have in common?