1. Cells/Macromolecules
Chemistry of Life
Chapter 2
Objectives: Know the functions of each group of organic compound/macromolecule

2. Vocabulary Create a flash card for the following
Words (all from Chapter 2 or use Glossary):
Products
Monomer
Activation energy
Polymer
Catalyst
Carbohydrate
Enzyme
Proteins
Reactant

3. What do all these organisms have in common
What do all these organisms have in common? Carbon based—carbon molecules are like the backbone of living things

4. Carbon Molecules

5. Carbon Molecules Can be very LARGE
A POLYMER is a molecule, like a carbon molecule, that consists of repeated, linked units.
Large polymers are called MACROMOLECULES
Carbohydrates
Lipids
Proteins
Nucleic Acids

6. Compounds made of carbon, hydrogen, and oxygen atoms
Carbohydrates
Compounds made of carbon, hydrogen, and oxygen atoms
Living things use carbohydrates as their main source of Energy

7. Carbohydrates

8. Mostly carbon and hydrogen atoms
Lipids
Mostly carbon and hydrogen atoms
Not soluble in water, made of fatty acids
Olive oil is an example
Used to store energy

9. Nucleic Acids
Hydrogen, oxygen, nitrogen, carbon, and phosphorus atoms
Formed from NUCLEOTIDES (a 3 part monomer of a sugar, phosphate, and nitrogen base)
Store and transmit hereditary material (DNA)

10. Nucleic Acids

11. Proteins Contain Nitrogen, carbon, hydrogen, and oxygen
Composed of polymers called amino acids (contain –NH2 and –COOH)
Some proteins control the rate of reactions within cells, some form bone and muscle, some transport substances into or out of cells and help fight diseases

12. Must include a description (can be the definition)
INTERACTIVE
Create a 4-flap book to describe and illustrate the 4 types of MACROMOLECULES!
Must include a picture
Must include a description (can be the definition)

13. Chemical Reactions
A chemical reaction is a process that changes one set of chemicals into another set of chemicals.
Some chemical reactions occur slowly (like rusting), some occur quickly (like explosions)
Chemical reactions always involve the breaking of bonds and forming of new ones

14. Chemical Reaction Brain Pop of Video Clip

15. Energy in Reactions
Not all chemical reactions will start on their own.
The energy needed to start a chemical reaction is called ACTIVATION ENERGY.

16. Catalysts
Some chemical reactions that are necessary for life are very slow or have high activation energies.
These chemical reactions are made possible by using a CATALYST.
A CATALYST is a substance that speeds up the rate of a chemical reaction by lowering the required activation energy.
Give book on a wedge example…easier to push when resting on the wedge, requires less energy to push it

17. ENZYMES are proteins that act as CATALYSTS.
Cells use enzymes to speed up chemical reactions that take place within the cells.

18. Catalysts and Enzymes
Insert pictures/graphs

19. Catalyst Video Clip
How to speed up chemical reactions and get a date 4:56

20. Catalyst Graphing Activity
p.80 in text book, do it whole class on doc camera

21. Macromolecule POGIL

22. Assessment Answer questions 1-3 on page 53.
You do NOT have to copy the question, but answers should be in complete sentences, re-state the question.