Molecules of Life Biomolecules - PowerPoint PPT Presentation

1 / 30
About This Presentation
Title:

Molecules of Life Biomolecules

Description:

Title: 6.3 Molecules of Life Last modified by: Williams, Maria Document presentation format: On-screen Show (4:3) Company: mrs User Other titles: Arial Calibri Office ... – PowerPoint PPT presentation

Number of Views:150
Avg rating:3.0/5.0
Slides: 31
Provided by: ramo121
Category:

less

Transcript and Presenter's Notes

Title: Molecules of Life Biomolecules


1
Molecules of LifeBiomolecules
2
  • Monomers simplest subunits, building blocks
  • Polymers repeating monomers

3
  • Monomers join to form polymers through the
    process of condensation (removing a water
    molecule)
  • Condensation is also known as polymerization!

4
(No Transcript)
5
  • Hydrolysis breaking down polymers (adding a
    water molecule)

6
4 classes of Life Substances
  • Carbohydrates
  • Proteins
  • Lipids
  • Nucleic Acids

7
Journal 1
  • Why might a coach tell an athlete to eat pasta
    the night before an athletic event?
  • What major class of bio-molecules is pasta a part
    of?

8
Carbohydrates (Carbs)
  • Composed of Carbon, Hydrogen, and Oxygen
  • Used by cells to provide ENERGY
  • Fuel for the cell

9
Carbs continued
  • Monomer is called a monosaccharide
  • Polymer is called a polysaccharide
  • Examples
  • Monosaccharide glucose
  • Polysaccharide starch in plants, glycogen in
    animals

10
Journal 2
  • List anything that you associate with protein.
  • What does your list have in common?

11
Proteins
  • Functions
  • forms muscle tissue
  • transport oxygen in blood
  • provide immunity (antibodies)
  • carry out chemical reactions (enzymes)
  • Receptors

12
Proteins Continued
  • Monomer amino acid
  • Polymer polypeptide
  • (3 or more amino acids)
  • Polypeptides are formed by peptide bonds.

13
  • Polypeptides are formed by peptide bonds

14
Levels of Protein Structure
15
(No Transcript)
16
  • There are about 20 common amino acids that are
    the building blocks of 1000s of different
    proteins.
  • Journal 3 How can this be??? Propose an
    explanation.

17
  • Some amino acids are acidic, others are basic,
    and some are neutral. Polar/nonpolar
  • This causes the amino acids to interact in
    different ways to each other. Some attract, some
    repel.
  • Unique
  • properties
  • unique shapes
  • unique functions

18
(No Transcript)
19
  • Based on the unique sequence of the amino acids
    in a particular polypeptide the protein will
    fold in a particular way.
  • With 20 different amino acids, the variety of
    sequences and shapes that will result is
    limitless!!!

20
  • Enzymes a special class of proteins
  • Function Increase the rate of a reaction by
    lowering the amount of energy required for the
    reaction to take place.
  • PLEASE CAREFULLY READ AND UNDERSTAND PAGE 162 of
    your text book (B) Biology The dynamics of Life
    (Whale cover)

21
(No Transcript)
22
(No Transcript)
23
Lets Review.
  • What is a monomer?
  • What is a polymer?
  • What is the building block of Carbohydrates?
  • What is the building block of Proteins?

24
Lipids
  • Monomers fatty acids, glycerol
  • Polymer trigylcerides, phospholipids, wax

25
(No Transcript)
26
  • Used for long term energy storage, insulation,
    and protective coverings.
  • Examples- Fats, oils, waxes

27
Journal
  • How is information passed along in cells???
  • What codes for everything????

28
Nucleic Acids
  • Store hereditary information in a code
  • Monomer nucleotide

29
Nucleic Acids
  • Polymers DNA (Deoxyribonucleic acid)
  • RNA (Ribonucleic acid)

30
  • The end of todays lesson.
  • Time to Review!!!
Write a Comment
User Comments (0)
About PowerShow.com