CO: I will understand and identify the structure and function of a carbohydrate.
LO: I will write notes and build a carbohydrate.

Notes: Biomolecules
• Biomolecules are the molecules found in all living things.
• Biomolecules are organic compounds.
– Organic compound contain the element carbon (C)
– All living things contain carbon
– A substance without carbon is called inorganic
C = carbon
H = hydrogen
O = oxygen
Elements to know:
N = nitrogen
P = phosphorus

Structure:
• Circle or ring shaped
• Create a 1:2:1 ratio
Elements:
• C, H, O
Monomer:
• Monosaccharide
• Examples: glucose, sucrose
Functions:
• Main source of immediate energy
Good to know:
• Often known as simple
(monomers) and complex
(polymers)
Carbohydrate
Polymer:
• Polysaccharide
• Examples: starch, cellulose

1. What monomer did you build?
2. What elements are present in your monomer?
3. How does the structure of your monomer allow it to complete its function?

• Which of the following is/are not carbohydrates?
• C
6
H
12
O
6
• C
12
• C
6
H
24
0
O
12
H
6
6
• C
6
H
12
• C
12
H
24
O
14
0
12

CO: I will understand and identify the structure and function of a lipid.
I will compare it to a carbohydrate.
LO: I will write notes and build a lipid. I will create a Venn Diagram to compare carbohydrates and lipids.

Structure:
• Chain shaped
• A backbone and 3 tails
Elements:
• C, H, O
Monomer:
• Fatty acids
Functions:
• Source for long term energy
• Primary component of the cell membrane (hydrophobic)
Good to know:
• Saturated fats: contain single bonds
• Unsaturated fats: contain double bonds
Polymer:
• Triglyceride (lipid)

Making a Lipid:
1. What kind of lipid did you make, saturated or unsaturated?
How do you know?
2. What elements are in the lipids?
3. The glycerol in a lipid is often referred to as the glycerol backbone. Why do you think that is?
4. How does the structure of a lipid determine its function?

• Examine the following pictures of steroids.
What kind of biomolecule do you think they are? Why?

• Be able to explain the joke