Examlex
The electric field shown is produced by a single point charge at the center of the picture.
-If a new positive point charge is placed at location A directly to the right of the one pictured,the force on it will
R Groups
The variable side chain attached to the alpha carbon of an amino acid that determines the amino acid's properties and its role in protein structure and function.
Peptide Bond
A distinctive covalent carbon-to-nitrogen bond that links amino acids in peptides and proteins.
Condensation Reaction
A chemical reaction where two molecules combine to form a single molecule, releasing a small molecule as a byproduct, such as water.
Polypeptide Chain
A linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule.
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