1. BELL RINGER [3 Minutes]
Mark K/S/H/D for new Macromolecules Vocabulary Words
Write ONE sentence using ONE AWL Word

2. MYP Biology:
The Macromolecules of Life

3. All Life on Earth is Carbon-Based
CARBON is one of the four elements that makes up most living things.
Since Carbon atoms can make COVALENT bonds with up to four other atoms, it forms the backbone of all of the essential molecules that make up living things.

4. What does it mean for a molecule to be Organic or Inorganic?
Molecules that contain carbon are called ORGANIC. (There are a few exceptions to this—CO2 for example, is considered inorganic)
INORGANIC molecules do not contain carbon.

5. What are Macromolecules?
Macromolecules are large, CARBON-based, organic molecules. There are four major types:
CARBOHYDRATES
LIPIDS
PROTEINS
NUCLEIC ACIDS

6. What are Monomers and Polymers?
Many carbon-based molecules are made up of smaller subunits joined together:
The individual subunits are called MONOMERS.
Multiple monomers join together to make POLYMERS.

7. CARBOHYDRATES Monosaccharide Polysaccharide
MONOMER:
Monosaccharide
POLYMER:
Polysaccharide
FUNCTION:
Primary energy source for cells/ organisms
STRUCTURE:
Carbon-based rings (C,H,O)
EXAMPLES:
Glucose, Starch, Lactose, Sucrose

8. LIPIDS Fatty Acid Lipids
MONOMER:
Fatty Acid
POLYMER:
Lipids
FUNCTION:
Energy storage, cell signaling (hormones), insulation of body, cell membrane structure
STRUCTURE:
Long carbon-based straight chains (C,H,O)
EXAMPLES:
Cholesterol and other steroids, oils, and fats

9. PROTEINS Amino Acid Protein
MONOMER:
Amino Acid
POLYMER:
Protein
FUNCTION:
Body structure, vision, movement, speed-up chemical reactions
STRUCTURE:
Folded-up chains of 20 different types of amino acids (C,H,O,N)
EXAMPLES:
Hemoglobin, Keratin, Insulin, Myosin

10. NUCLEIC ACIDS Nucleotide Nucleic Acid
MONOMER:
Nucleotide
POLYMER:
Nucleic Acid
FUNCTION:
Store and express genetic information
STRUCTURE:
Long chains of nucleotides (C,H,O,N), DNA ‘helix’
EXAMPLES:
DNA, RNA

11. Common Monomers:
Amino Acid
Nucleotide
Fatty Acid
Monosaccharide

12. NOTE: Organic molecules are often drawn w/o Carbon…

13. ORGANIC or INORGANIC??

14. Check 4 Understanding!
Macromolecule
Monomer
Polymer

15. Check 4 Understanding! Macromolecule Monomer Polymer Carbohydrate
Protein
Nucleic Acid
Lipid

16. Check 4 Understanding! Macromolecule Monomer Polymer Carbohydrate
Monosaccharaide
Polysaccharide
Protein
Nucleic Acid
Lipid

17. Check 4 Understanding! Macromolecule Monomer Polymer Carbohydrate
Monosaccharaide
Polysaccharide
Protein
Amino Acid
Nucleic Acid
Lipid

18. Check 4 Understanding! Macromolecule Monomer Polymer Carbohydrate
Monosaccharaide
Polysaccharide
Protein
Amino Acid
Nucleic Acid
Nucleotide
DNA or RNA
Lipid

19. Check 4 Understanding! Macromolecule Monomer Polymer Carbohydrate
Monosaccharaide
Polysaccharide
Protein
Amino Acid
Nucleic Acid
Nucleotide
DNA or RNA
Lipid
Fatty Acid

20. Name this Macromolecule…
Stores and expresses genetic info of cells
Made up of nucleotide monomers
Examples: DNA & RNA…
NUCLEIC ACIDS

21. Name this Macromolecule…
Primary energy source of cells
Often called “sugars” or ‘saccharides’
Examples: Glucose, Lactose, Starch…
CARBOHYDRATES

22. Name this Macromolecule…
Stores extra energy in organisms
Makes up hormones (signaling molecules)
Insulates and protects body
Makes up cell membranes
Often called “fats”
Examples: Cholesterol, oils…
LIPIDS

23. Name this Macromolecule…
Builds body structure
Speeds-up chemical reactions
Helps with movement and vision
Made up of Amino Acid monomers
Examples: Hemoglobin, Keratin…
PROTEINS

24. Card-sort Activity:
In groups, sort the nine molecule cards into 3 groups of three based on their qualities…
PROTEINS
CARBOHYDRATES
LIPIDS