1. 3-2 Molecules of Life

2. 3-2 Molecules of Life

3. Proteins Lipids Nucleic Acids Carbohydrates
3-2 Molecules of Life
Proteins
Lipids
Nucleic Acids
Carbohydrates

4. Proteins Can you think of an example?
Tables 1, 2, and 3, write an example of a protein on a post it note, and place it under next to the sink labeled “proteins”

5. Proteins
Definition – a compound made up of amino acids that helps build cells
Held together by peptide bonds

6. Proteins
Many different kinds

7. Proteins Many different kinds
Found in skin and muscles, and everywhere else

8. Proteins Many different kinds
Found in skin and muscles, and everywhere else
Make up enzymes

9. Proteins
Examples:
Keratin (hair)
Collagen (bones, muscles, skin)

10. Carbohydrates Can you think of an example?
Tables 4, 5, and 6, write an example of a carbohydrate on a post it note, and place it under next to the sink labeled “carbohydrates”

11. Carbohydrates Definition – carbon-based sugars, starches, and fibers
Body breaks them down to provide energy

12. Carbohydrates
Examples:
Glucose
Fructose
Sucrose (table sugar)

13. Lipids Fats Can you think of an example?
Tables 7, 8, and 9, write an example of a lipid on a post it note, and place it next to the sink labeled “lipids”

14. Lipids Definition – fatty acids not soluble in water
Makes up cell membranes

15. Lipids
Examples:
Oils
Fats
Steroids
Waxes

16. Lipids
Head-hydrophilic
Tail - hydrophobic

17. Lipids
Saturated-single bonded carbon chain

18. Lipids Saturated-single bonded carbon chain
Unsaturated-double bonded carbon chain

19. Lipid Bilayer makes the cell membrane

20. Nucleic Acids Hereditary information and storage ex. DNA and RNA
Contains C, H, O, N

21. Monomers One molecule by itself
Can sometimes make chains with other monomers to make a…

22. Polymer
A chain of connected monomers

23. Polymer Molecule Monomer Polymer Example Proteins Amino acid
Polypeptide ?
Lipids
Fatty acid
lipid
Nucleic Acids
Nucleotides
Nucleic acids
Carbohydrates
monosaccharides
Polysaccharides