Proteins can be precipitated out of aqueous solution bythe addition of an electrolyte; this process is called “saltingout” the protein. (a) Do you think that all proteins wouldbe precipitated out to the same extent by the same concentrationof the same electrolyte? (b) If a protein has beensalted out, are the protein–protein interactions stronger orweaker than they were before the electrolyte was added?
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
Proteins can be precipitated out of aqueous solution by
the addition of an electrolyte; this process is called “salting
out” the protein. (a) Do you think that all proteins would
be precipitated out to the same extent by the same concentration
of the same electrolyte? (b) If a protein has been
salted out, are the protein–protein interactions stronger or
weaker than they were before the electrolyte was added?
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