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The Chemistry of the Cell

Published byEthelbert Reynolds Modified over 6 years ago

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Presentation on theme: "The Chemistry of the Cell"— Presentation transcript:

1 The Chemistry of the Cell
Chapter 2: The Chemistry of the Cell

2 Important Properties of Carbon
Valence of four Forms covalent bonds Can share multiple pairs of electrons Carbon containing molecules are stable and diverse

3 Diversity of Molecules Containing Carbon
Can vary in length Can form rings Can branch Can contain double bonds Can have functional groups attached

4 Important Properties of Water
Water molecules are polar Water molecules are cohesive Water has a high temperature stabilizing capacity Water is an excellent solvent

5

6 Important Properties of Water
Water molecules are polar Water molecules are cohesive Water has a high temperature stabilizing capacity Water is an excellent solvent

7 Hydrogen bond

8 Important Properties of Water
Water molecules are polar Water molecules are cohesive Water has a high temperature stabilizing capacity Water is an excellent solvent

9

10 Important Properties of Water
Water molecules are polar Water molecules are cohesive Water has a high temperature stabilizing capacity Water is an excellent solvent

11 Important Properties of Membranes
Forms a barrier Keep substances in/out while allowing substances in/out Insoluble in water, but permeable to water

12 Membranes Hydrophilic heads Hydrophobic tails Water

13 Fluid Mosaic Model Extracellular matrix Glycoprotein Carbohydrate
Plasma membrane Microfilaments of cytoskeleton Phospholipid Cholesterol Proteins Cytoplasm Glycolipid

14 Selective Permeability

15 Organic Macromolecules
Proteins Nucleic Acids Polysaccharides Lipids

16 Hierarchy of Molecules in Cell Biology
Level 1 – organic molecules Level 2 – biological macromolecules Level 3 – supramolecular structures Level 4 – organelles Level 5 – the cell

17 Macromolecules are synthesized by polymerization

18 Self Assembly

19 Non-Covalent bonds are important in macromolecule folding
Hydrogen bonds Ionic bonds Van der Waals forces Hydrophobic/hydrophilic

20 Hydrogen Bonding Hydrogen bond

21 Non-Covalent bonds that are important in macromolecules
Hydrogen bonds Ionic bonds Van der Waals forces Hydrophobic/hydrophilic

22 Ionic Bonding Transfer of electron Na Sodium atom Cl Chlorine atom

23 Non-Covalent bonds that are important in macromolecules
Hydrogen bonds Ionic bonds Van der Waals forces Hydrophobic/hydrophilic

24 Van der Waals forces

25 Non-Covalent bonds that are important in macromolecules
Hydrogen bonds Ionic bonds Van der Waals forces Hydrophobic/hydrophilic

26 Hydrophobic/hydrophilic

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