Download Complex Molecules

Complex Molecules
8-27-14
Warm Up: Think Ink Pair Share
• What is a macromolecule?
• What is a “carbon-based life form?”
Carbon
• All life on Earth is made up of carbon bonded
to other elements.
• Carbon can form many different bonds.
Macromolecules
• A large molecule that is composed of thousands
of smaller molecules.
• Monomer: one small molecule
• Polymer: many monomers bonded together
Macromolecules
• Complex molecules needed for life.
– Carbohydrates
– Lipids
– Nucleic Acid
– Proteins
Carbohydrates
• Composed of carbon, hydrogen, and oxygen.
– 1:2:1 ratio
Structured Partners
# of Carbon
Atoms
1
4
7
2
# of Hydrogen
Atoms
2
6
14
# of Oxygen
Atoms
1
4
3
22
1,200
Carbohydrates
• Monomer: monosaccharide
• Polymer: polysaccharide
• Examples of monomers
Monomer
• The monomer for carbohydrates we will
discuss in this class is always glucose.
Simple Sugars
• Lactose
• Maltose
• Sucrose
Polysaccharides
Function
Molecule
Structure
Function
How it affects
Humans
Cellulose
Glucose alternating
direction
Give plants
structure
Dietary fiber: cannot
be digested
Starch
Chain of glucose
Store sugar in
plants
Where humans get
the majority of their
energy.
Glycogen
Branched chain of
glucose
Store sugar in
animals
Short term storage
of extra sugar. (long
term converted into
lipids)
Simple vs. Complex
• What is carb loading?
• What is the difference between simple
carbohydrates and complex carbohydrates?
• Which one is better to eat?
Activity
• Pick one of the polysaccharides that have not
been done yet.
• Make a model of the molecule using colored
paper.
• Get filmed explaining your molecule.
Closing: Think Ink Pair Share
• Which is better to eat, simple sugars or
complex carbohydrates?