1. PROWL time…
No cell phones or talking

2. Wednesday 9/2/2015 Good morning! Please make sure your phones are away
Take out your INB
and a sheet of paper on which to start your bell ringer

3. Bell Ringer List the three main shapes that carbon molecules take on
Name the four macromolecules that are essential for life, and list the elements of which each is composed.

4. Lesson Objective
I can summarize the bonding properties of carbon.
I can describe the four main types of carbon-based molecules found in living things.

6. KEY CONCEPT Carbon-based molecules are the foundation of life.

7. Carbon atoms have unique bonding properties.
Carbon forms covalent bonds with up to four other atoms, including other carbon atoms.
Carbon-based molecules have three general types of structures.
straight chain
branched chain
ring

8. Many carbon-based molecules are made of many small subunits bonded together.
Monomers are the individual subunits.
Polymers are made of many monomers.

9. Four main types of carbon-based molecules are found in living things.
Carbohydrates are made of carbon, hydrogen, and oxygen.

10. Four main types of carbon-based molecules are found in living things.
Carbohydrates are made of carbon, hydrogen, and oxygen.
Carbohydrates include sugars and starches.
Monosaccharides are simple sugars.
Polysaccharides include starches, cellulose, and glycogen.

11. Carbohydrates can be broken down to provide energy for cells.
Some carbohydrates are part of cell structure.
Polymer (starch)
Starch is a polymer of glucose monomers that often has a branched structure.
Polymer (cellulose)
Cellulose is a polymer of glucose monomers that has a straight, rigid structure
monomer

12. Many contain carbon chains called fatty acids.
Lipids are nonpolar molecules that include fats, oils, and cholesterol.
Many contain carbon chains called fatty acids.
Fats and oils contain fatty acids bonded to glycerol.
Triglyceride

13. Lipids have several different functions.
broken down as a source of energy
make up cell membranes
used to make hormones

14. Fats and oils have different types of fatty acids.
saturated fatty acids
unsaturated fatty acids

15. Phospholipids make up all cell membranes.
Polar phosphate “head”
Nonpolar fatty acid “tails”
Phospholipid

16. Proteins are polymers of amino acid monomers.
Twenty different amino acids are used to build proteins in organisms.

17. Proteins are polymers of amino acid monomers.
Twenty different amino acids are used to build proteins in organisms.
Amino acids differ in side groups, or R groups.

18. Proteins are polymers of amino acid monomers.
Twenty different amino acids are used to build proteins in organisms.
Amino acids differ in side groups, or R groups.
Amino acids are linked by peptide bonds.

19. Nucleic acids are polymers of monomers called nucleotides.

20. Nucleic acids are polymers of monomers called nucleotides.
Nucleotides are made of a sugar, phosphate group, and a nitrogen base.
A phosphate group
nitrogen-containing molecule, called a base
deoxyribose (sugar)

21. Nucleic acids are polymers of monomers called nucleotides.
Nucleotides are made of a sugar, phosphate group, and a nitrogen base.
DNA stores genetic information.
DNA
RNA builds proteins.
RNA

22. Get into group formation One person from each group get a supply box
Group Activity
Get into group formation
One person from each group get a supply box
Each person create a one page presentation on one of the macromolecules… carbohydrates, lipids, proteins, or nucleic acids
Each presentation must include:
Type of Molecule
Elements
Monomer
Structure (name & drawing)
Function
Example

23. Individual Work (pg. 16 INB)
Type of Molecule
Elements
Monomer
Structure
(drawing)
Function
Example
Carbohydrates
Lipids
Proteins
Nucleic Acids

24. Keratin Protein

26. Chitin Carbohydrate

28. Ear Wax Lipid

31. On bottom portion of bell ringer
Class Feedback
On bottom portion of bell ringer
What is today’s critical information & why is it important?
What did you find difficult or easy today?
How would you rate your effort today?
Additional comments…

32. Homework
Interactive reader page 25-29
Read and mark the text (circle key words and underline main ideas)
Answer all questions
Review notes from today