Biochemistry
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Art Ayers
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Biochemistry
Jul 1, 2009
Hydrophobic, Hydrophilic and Hydrogen Bonds
By:
Art Ayers
Molecules that form hydrogen bonds with water are hydrophilic and those that can't are hydrophobic.
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Jul 1, 2009
Hydrogen Bonds Form Biological Structures
By:
Art Ayers
Cell membranes, ribosomes, protein complexes and biological macromoles such as nucleic acids and proteins are held together by hydrogen bonds.
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Jun 24, 2009
Cell Metabolism and Energy Basics for Everyone
By:
Donald Reinhardt
Energy abounds in organic molecules and the key, as in mining ore, is to extract and process it. Simple bacterial cells and highly complex organisms do this well.
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Mar 31, 2009
Reaction Specificity of Enzymes
By:
Art Ayers
Enzymes bind to particular molecules, because the protein secondary structure rigidly displays amino acid functional groups that make multiple bonds with the molecules.
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Aug 9, 2008
Proteins and Amino Acids
By:
Kenneth Rosen
Proteins are a major component of all of our cells. Amino acids are the building blocks of protein. Amino acids can be grouped according to their chemical behavior.
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Aug 3, 2008
Angiotensin II Signaling Pathways
By:
Alicia Mae Prater
Tyrosine kinase signaling is but one path activated by angiotensin II to regulate fluid balance, cell growth, and more.
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Jun 1, 2008
Oxygen and Dietary Antioxidants
By:
Tamara Golden
Why do we breathe oxygen? Oxygen is necessary for life, and the human brain can only survive a few minutes without oxygen. So why the great interest in antioxidants?
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Mar 16, 2008
LSD – Psychedelic Hallucinogen
By:
Simon Davies
The history of a drug with remarkable potential which was banned through misuse by "hippies."
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Feb 29, 2008
DNA: The Information Molecule
By:
Simon Davies
The history and structure of the most important molecule in living organisms, Deoxyribonucleic Acid.
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Jan 26, 2008
Automated Peptide Synthesis
By:
Simon Davies
The discovery in 1963 by Bruce Merrifield of a way to automatically synthesise polypeptides and protiens accurately and without loss of yield.
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Oct 22, 2007
What Is Cellular Metabolism?
By:
Tami Port
We hear the word used all the time, read diet books on how to boost ours and lament its slowing as we age. But what exactly is metabolism?
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Oct 20, 2007
What Is an Enzyme Catalyst?
By:
Tami Port
A cell's ability to carry out essential chemical reactions separates the animate from inanimate. Without these biological catalysts, life itself would not be possible.
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Oct 17, 2007
What Is the Nucleotide ATP?
By:
Tami Port
Adenosine triphosphate is a power-packed nucleotide that cells of our body just can't live without. Here's a clear summary of what ATP is, how it works and how it's made.
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Jul 23, 2007
Enzyme Inhibition
By:
Melanie Lamprecht
Read about the goals of Ribonuclease A,TPCK and enzyme inhibition in modern protein chemistry.
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