042 – Biological Molecules
Paul Andersen describes the four major biological molecules found in living things. He begins with a brief discussion of polymerization. Dehydration synthesis is used to connect monomers into polymers and hydrolysis breaks them down again. The major characteristics of nucleic acids are described as well as there directionality from 3′ to 5′ end. Protein structure is describes as well as the structure of its monomers; amino acids. The carboxyl and amino ends of a protein are described. The major groups of lipids are included with a brief discussion of saturated, unsaturated and trans fats. Finally carbohydrates and their sugar monomers are discussed.
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Creative Commons Atribution License
All of the images are licensed under creative commons and public domain licensing:
→AzaToth. Myoglobin 3D Structure, February 5, 2008. self made based on PDB entry. http://commons.wikimedia.org/wiki/File:Myoglobin.png.
en.wikibooks, Original uploader was Calibuon at. English: Each Nucleic Acid Contains Many Building Blocks Called Nucleotides. The Nucleotides Have a Distinctive Structure Composed of Three Components That Held Together by Covalent Bond:a Nitrogen-Containing Base (cytosine,thymine,acenine,guanine, a 5-Carbon Sugar – Ribose or Deoxyribose, a Phosphate Group., November 9, 2008. Transferred from en.wikibooks; transferred to Commons by User:Adrignola using CommonsHelper. http://commons.wikimedia.org/wiki/File:Nucleotides.gif.
“File:Alpha-D-Glucopyranose-2D-Skeletal.png.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Alpha-D-glucopyranose-2D-skeletal.png.
“File:Amino Acids.svg.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Amino_Acids.svg.
“File:Beta-D-Glucopyranose-2D-Skeletal.png.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Beta-D-glucopyranose-2D-skeletal.png.
“File:Biological Cell Vacuole.svg.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Biological_cell_vacuole.svg.
“File:Common Lipids Lmaps.png.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Common_lipids_lmaps.png.
“File:Difference DNA RNA-EN.svg.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Difference_DNA_RNA-EN.svg.
“File:Nyc-Trans-Poster.gif.” Wikipedia, the Free Encyclopedia, September 11, 2013. http://en.wikipedia.org/w/index.php?title=File:Nyc-trans-poster.gif&oldid=464648357.
“File:Rasyslami.jpg.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Rasyslami.jpg.
“File:Starchy-Foods..jpg.” Wikipedia, the Free Encyclopedia. Accessed December 18, 2013. http://en.wikipedia.org/wiki/File:Starchy-foods..jpg.
glycoform. English: 3D Projection of Amylose, Alpha-1-4 Linked Glucose Polymer, January 3, 2009. Own work. http://commons.wikimedia.org/wiki/File:Amylose_3Dprojection.corrected.png.
michael. Probable Nucleic Acid Precipitated., May 6, 2007. Probable Nucleic Acid precipitated. http://commons.wikimedia.org/wiki/File:Probable_Nucleic_Acid_precipitated.jpg.
Tyagi.anuj. Animo Group, August 20, 2008. Own work. http://commons.wikimedia.org/wiki/File:Amino_Acid.JPG.
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I wish this guy was my teacher!! My AP Bio teacher has no idea how to explain things!! These videos are so useful and are the only reason I can kinda understend anything
Hey Guys! It's me Obama
Test tomorrow. I had no clue what I was doing until I finished watching this video.
These videos are really helpful! Thank you so much!
dehydration synthesis is condensation reaction right?
Jaw dropping hot
Just simply memorize it guys… -__-
Thanks Mr. Andersen, you da real MVP.
Not to diss Crash Course (which I love and helped me passed General Bio with an A) but I think you're the best out there! You make it super easy to understand with examples and talk slowly and explain things! It makes me love biology so thank you for that! My first test is next monday and I've been preparing for a week now and these videos really are nifty, so thank you again!
anyone want the answers lol?
This was soooooo helpful! Thank you so much
Bio is such a difficult class to master. You can know so much about the subject and still not have enough info to even pass.
man ur far more greater explainer then my biology teacher
Thanks God I'm gona pass tomorrow's bio chem test.. Thumb's up Andersen
This was really useful, thanks!
I have never understood the 5' and 3' concept until now. Thank you Mr. Anderson for your clear explanation.
WONDERFUL VIDEO.EXCELLENT EXPLANATION.MILLION THANKS.KEEP IT UP. :)
Are you kidding me??? jesus!!
You are such a great explainer.
So who else is watching all of these to prepare for the AP exam… XD