1. AIM: What are some other organic molecules?
Lipids/Fats
&
Proteins

2. What are lipids used for in our bodies?
Major component
of cell membranes
Important energy
source

3. What are lipids made up of?
They are polymers = LARGE MOLECULE They have many bonds = more energy.

4. Fats can be Saturated or Unsaturated
Solid fat
Leads to cholesterol
Butter, lard, animal fat
Liquid at room temp
Olive oil, canola oil

5. Saturated Fats Diets rich in saturated fats can lead to the build
up of plaques in blood vessels.

6. What is another category of organic molecules?
Proteins

7. Proteins have many functions:
Proteins are enzymes,
found in cell membrane,
make up antibodies, hormones
and muscles.

8. What are proteins made up of?
Proteins are made
up of polymers or
chains of amino acids.

9. How do we build proteins?
To make a protein, we must join the building blocks together.
Amino acids are the building blocks.
How do we join amino acids together?
Dehydration
Synthesis

10. What are Polypeptides?
Polypeptides are long chains of MANY amino acids
Proteins are long chains of one or more polypeptides!

11. How many amino acids are there?
There are only 20 amino acids, but there are millions of different types of proteins.
How can there be so many proteins
yet only 20 building blocks?
THINK OF THE ALPHABET!
There are ONLY 26 LETTERS IN
THE alphabet, yet millions of
words…….
What determines the word?_________________________

12. Protein Shape: The sequence (order) of amino acids in a
protein determine its shape.
2) The shape of a protein determines its activity or job.

13. What does Denaturation mean?
An unfavorable change in
temperature, pH can cause a
protein to unravel and
lose its normal shape.
NO SHAPE = NO FUNCTION
Denatured proteins do not function properly!

14. Why are proteins organic?
contain carbon & hydrogen
Examples:
enzymes
hormones
hemoglobin

15. What is another group of organic compounds?
Nucleic
Acids

16. DNA & RNA are Two Kinds of Nucleic Acids
The building blocks
of nucleic acids are:
Nucleotides

17. What is a nucleotide made of?

18. What is DNA responsible for?
Our characteristics or traits

19. REVIEW: The 4 Organic Molecules:
Lipids
Carbohydrates
Proteins
Nucleic Acids