- carbon can form up to four bonds
- most carbon-based molecules are classified as organic molecules
- non-carbon based molecule classified as inorganic molecules
- carbon can bond with other elements
- hydrocarbons are important fuels
- Methane: abundant hydrogen, natural gas
- Some biomolecule can be composed of hundreds or even millions of atoms
- large molecules classified in four main categories: carbohydrates, lipids, proteins, and nucleic acids
- Dehydration reaction involves removing water
- Organisms not only build polynomers, but they also have to brek them down
- water is removed to build a polynomer, and water is added to break it down
Concept Check 5.1
1. Draw a molecule that has a three-carbon skeleton and a hydroxyl group on the middle carbon. (Hint: The molecule's formula is C3H8O.)
2. Explain the connection between monomers and polymers.
The connection between monomers and polymer is that polynomer is a straight chain of monomers. Other polymer have branching chains. So the monomer comes together to form polymer.
3. What molecule is released during construction of a polymer? What is this reaction called?
During the construction of a polymer water molecule is released. This reaction is called dehydration reaction.
4. Draw at least three ways in which five carbon atoms could be joined to make different carbon skeletons.
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