1. Standard
SB1c. Identify the function of the four major macromolecules (i.e., carbohydrates, proteins, lipids, nucleic acids).

2. Before we begin… What are cells made of?

5. Activity time
With the blocks given build something with your partner(s)

6. What are macromolecules?
big
Big molecule
Macromolecules are essential molecules.
*ESSENTIAL- adjective:
absolutely necessary; extremely important

7. They contain Carbon, Hydrogen and Oxygen
THINK! Organic….?
What does this mean?
They contain Carbon, Hydrogen and Oxygen
Macromolecules are all organic compounds because all 4 contain these 3 (of the 5) essential elements!!

8. ORGANIC COMPOUNDS
LIPIDS
PROTEINS
NUCLEIC ACIDS
CARBOHYDRATES

9. What do macromolecules look like?
Made up of smaller “building blocks” called monomers (mono=one)
Kind of like bricks making a brick wall

10. Four Major Macromolecules:
1. Lipids-fats
2. Carbohydrates
3. Proteins
Nucleic acids ( DNA & RNA)
All 4 are essential for the survival of living things
What does essential mean???

11. Examples: fats, oils, and waxes
1. Lipids
Examples: fats, oils, and waxes

12. Function: insulation (padding), protection,
Why do we need fat?
Function: insulation (padding), protection,
stored energy

13. Did you know???
A lipid is a fat if it is solid at room temperature and an oil if it is a liquid at room temperature

14. Lipid Monomer The monomer of a lipid is called a fatty acid
(Fats make you look swollen so think fat lip)

15. What is this?

16. imgres
imgres

17. Ex: sugars, starches (grains), cellulose
2. Carbohydrate
Definition: Molecule made of Carbon, Hydrogen and Oxygen in a 1:2:1 ratio called a saccharide
Ex: sugars, starches (grains), cellulose
Glucose: the source of most of the cell’s energy
-ose = sugar
The word “Saccharide” means “sugar” (monosaccharide, disaccharide, polysaccharide)

18. Rule: If it comes from an animal, then it definitely has protein.
3. Proteins
Definition: A macromolecule (organic-carbon compound) made of amino acids
Rule: If it comes from an animal, then it definitely has protein.

19. Protein Functions: provide structural support (muscles)
transport substances (hemoglobin in blood)
speed-up reactions (enzymes)

20. 4. Nucleic Acids
Examples: DNA and RNA

21. Function: store and communicate genetic information
Nucleic Acid
Function: store and communicate genetic information

22. Nucleic Acid Monomer
Nucleotides are the monomers for nucleic acids

24. EXIT TICKET
NUMBER YOUR PAPER 1-5
PUT YOUR NOTES AWAY

25. The first step of the scientific method is to:_____________
Question 1
The first step of the scientific method is to:_____________
A. Perform an experiment
B. Identify a question
C. Write a conclusion
D. Collect Data

26. All of the following macromolecules are obtained from food EXCEPT:
Question 2
All of the following macromolecules are obtained from food EXCEPT:
A. Lipids
B. Proteins
C. Nucleic Acids
D. Carbohydrates

27. In biology the term organic refers to:
Question 3
In biology the term organic refers to:
A. Pesticides
B. A type of food
C. A substance made of carbon, hydrogen, and oxygen
D. Any living thing that has organs

28. Question 4
Lipids are made up of __________, while carbohydrates are made up of ____________.
A. Fatty acids; sugars
B. carbohydrates; proteins
C. sugar; fatty acids
D. A wax; an oil

29. What molecule makes up the bulk of a cell?
Question 5
What molecule makes up the bulk of a cell?
A. carbohydrates
B. lipids
C. proteins
D. water