Energy Energy - The ability to do work.

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Presentation transcript:

Energy Energy - The ability to do work

ENERGY Kinetic Energy - energy of motion Potential Energy - stored energy - position or structure

ENERGY Types of Energy Chemical

ENERGY Types of Energy Electrical

ENERGY Types of Energy Mechanical

ENERGY Types of Energy Light Heat

Energy Conversions Energy can be converted from one type to another: Here we see chemical energy (the battery) being converted to mechanical energy (the fan).

Thermodynamics Thermodynamics is the study of the flow of energy throughout an ecosystem. There are two laws of Thermodynamics that we will study

First Law of Thermodynamics Energy can be transferred and transformed, but it can neither be created nor destroyed. That is: the amount of energy in a system remains the same.

Amount of energy in the system remains the same

Second Law of Thermodynamics Every energy transfer or transformation increases the entropy of the universe. Entropy - random, useless energy, can not do work, eg. “Heat”.

Metabolism Metabolism refers to all of the chemical reactions that take place inside our cell. An anabolic reaction is a reaction that builds macromolecules from simpler molecules. A catabolic reaction is a reaction that breaks apart macromolecules into simpler molecules.

Energy Reactions Exothermic reactions Endothermic reactions

The ATP Cycle dephosphorylation phosphorylation