Chemistry of life
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Chemistry of Life. Basic Chemistry, Water, Organic Molecules, Energy Changes, Enzymes. Basic Chemistry. What is it?. Matter: Takes up space and has mass Element: Substance that cannot be broken down to other substances by chemical reactions.

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Chemistry of Life

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Chemistry of life

Chemistry of Life

Basic Chemistry, Water, Organic Molecules, Energy Changes, Enzymes


Basic chemistry

Basic Chemistry


What is it

What is it?

  • Matter: Takes up space and has mass

  • Element: Substance that cannot be broken down to other substances by chemical reactions.

  • Compound: Substance consisting of two or more elements in a fixed ration


The most common ones

The most common ones…

  • 25 of 92 natural elements are essential to life

  • C, O, H, N = 96% of all living matter


Elements behavior is due to structure of it s atom

Elements Behavior is due to structure of it’s atom

  • Atomic Particles

  • Atomic Number and Mass

  • Isotopes

  • Behavior due to Valence Electrons


Covalent bonds

Non-polar covalent

Polar covalent

Covalent Bonds


Ionic bonding

Ionic Bonding

  • Salts: Anion & Cation


Other types of bonding

Hydrogen

Van der Waals

Other Types of Bonding


Chemical reactions

Chemical Reactions

  • Make and Break Bonds

  • Must remain balanced


Water

Water


Water molecule

Water molecule


Hydrogen bonding

Hydrogen Bonding

  • Cohesion

  • Adhesion

  • Surface Tension

  • Crystaline Solid

  • Solvent

  • Moderation of Temperature

  • Evaporative Cooling


Surface tension

Surface Tension

  • Waters ability to stretch without breaking


Adhesion to matter

Adhesion to matter

  • Capillary action

    • Capillaries in body

    • Xylem in plants


Solid crystal formation

Solid Crystal formation

  • Lattice Structure

  • Density

  • Insulation for bodies of water


Solvent

Solvent

  • Universal solvent

  • Dissolves salts & sugars, vital for life functions


Temperature moderation

Temperature Moderation


Evaporative cooling

Evaporative Cooling


Water is hydrophilic

Water is Hydrophilic


Dissociation

Dissociation

  • Acid / Base

  • Dissociates to form acids or bases

  • Reversable reaction

    • Hydronium

    • Hydroxide


Buffers

Buffers

  • pH human blood 7.4

  • Regulation vital to survival & bodily function

  • Example: Carbonic Acid


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