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Lipids and Carbohydrates: Hydrocarbons and Organic Molecules
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<p class="pagetitle"><strong>Lipids and Carbohydrates:</strong> Hydrocarbons and Organic Molecules</p>
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<td><p class="mainidea">What do all "organic" chemical compounds have in common? </p></td>
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In varying combinations, the elements carbon, hydrogen, oxygen and
nitorgen make up practically all the chemical compounds in living things.
On this page you will explore the simplest organic compounds compounds
called hydrocarbons.
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Hydrocarbons
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Methane (CH<font size="2"><sub>4</sub></font>) is made of four
hydrogen atoms that surround a single carbon atom – thus the name
hydrocarbon. Other hydrocarbons can be derived from methane by adding
carbon atoms to elongate the carbon chain.
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To the right is a model of paraffin the simplest model. Your goal is to
explore the structure of hydrocarbons as they get more complex. What you
should do:
</p>
<ul>
<li>
Rotate the model by clicking on the molecule and dragging it around.
</li>
<li>
Click the “Add -CH<font size="2"><sub>2</sub></font>-” button
and observe the new hydrocarbon you created.
</li>
<li>
Click the “Add -CH<font size="2"><sub>2</sub></font>-" button <b>three</b>
more times.
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</ul>
<table width="100%">
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<td>
<img src="carbon.gif">
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<td>
carbon atom
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<td>
<img src="hydrogen.gif">
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<td>
hydrogen atom
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Hydrocarbons are referred to as organic molecules with a "backbone."
Take a snapshot and drag the snapshot into the box below. Use the arrow
tool (<img src="arrowtool.gif">) to point to the carbon backbone.
</p>
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How many bonds does every carbon atom have?
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