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Intro to Biochemistry

Bio “Life” + Chemistry “Chemical Reactions” =The study of chemical reactions in living things.

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Why Biochemistry?

One characteristic of living things: life depends on chemical reactions!

ENERGY

These are the principle energy reactions of life! (It’s a cycle!)

chemical reactions

chemical reactions

+ Chemical Reactions

Breaking Down, Building up or Recombining matter

Requires Reactants & Products

+ Chemical Reactions

What goes inWhat gets

produced (the result)

Breaking Down, Building up or Recombining matter

Requires Reactants & Products

+Metabolism

We eat food to take in the materials that will be the REACTANTS in our body’s metabolic reactions

Through these metabolic reactions, food is broken down into smaller molecules

As this happens, ENERGY is released!

Chemical reactions depend on the atoms involved.

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

This is an ATOM

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom

This is an ATOM

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

This is an ATOM

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

Carbon

This is an ATOM

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

Carbon Hydrogen

This is an ATOM

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

Carbon Hydrogen Nitrogen

This is an ATOM

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

Carbon Hydrogen Nitrogen Oxygen

This is an ATOM

Top 4!

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

Carbon Hydrogen Nitrogen Oxygen Phosphorus

This is an ATOM

Top 4!

+Atoms and Elements

Atom: smallest unit of matter that has the same defined properties

Element: substance made of only one type of atom 6 Common elements in living organisms

Carbon Hydrogen Nitrogen Oxygen Phosphorus Sulfur

Top 4!

This is an ATOM

+Atoms contain 3 types of subatomic particles

Protons

Neutrons

Electrons

Location Nucleus

Charge +

+Atoms contain 3 types of subatomic particles

Protons

Neutrons

Electrons

Location Nucleus

Nucleus

Charge + Neutral

+Atoms contain 3 types of subatomic particles

Protons

Neutrons

Electrons(on the Exterior)

Location Nucleus

Nucleus Energy clouds surrounding the nucleus called shells

Charge + Neutral -