Amino Acid MolecularWeights. The amino acids in proteins are composed of atoms of oxygen, carbon, nitrogen, sulfur, and hydrogen, as shown in Table The molecular weights of the individual elements are as follows:
Element | Atomic Weight |
Oxygen | 15.9994 |
Carbon | 12.011 |
Nitrogen | 14.00674 |
Sulfur | 2.066 |
Hydrogen | 1.00794 |
TABLE Amino Acid Molecules
Amino Acid | O | C | N | S | H |
|
Alanine | 2 | 3 | 1 | 0 | 7 |
|
Arginine | 2 | 6 | 4 | 0 | 15 |
|
Asparagine | 3 | 4 | 2 | 0 | 8 |
|
Aspartic | 4 | 4 | 1 | 0 | 6 |
|
Cysteine | 2 | 3 | 1 | 1 | 7 |
|
Glutamic | 4 | 5 | 1 | 0 | 8 |
|
Glutamine | 3 | 5 | 2 | 0 | 10 |
|
Glycine | 2 | 2 | 1 | 0 | 5 |
|
Histidine | 2 | 6 | 3 | 0 | 10 |
|
Isoleucine | 2 | 6 | 1 | 0 | 13 |
|
Leucine | 2 | 6 | 1 | 0 | 1 | 3 |
Lysine | 2 | 6 | 2 | 0 | 15 |
|
Methionine | 2 | 5 | 1 | 1 | 11 |
|
Phenylanlanine | 2 | 9 | 1 | 0 | 11 |
|
Proline | 2 | 5 | 1 | 0 | 10 |
|
Serine | 3 | 3 | 1 | 0 | 7 |
|
Threonine | 3 | 4 | 1 | 0 | 9 |
|
Tryptophan | 2 | 11 | 2 | 0 | 11 |
|
Tyrosine | 3 | 9 | 1 | 0 | 11 |
|
Valine | 2 | 5 | 1 | 0 | 11 |
|
Write a program that asks the user to enter the number of atoms of each of the five elements for an amino acid. Then compute and print the average weight of the atoms in the amino acid.
Logarithms to the base b. To compute the logarithm of x to base b, we can use the following relationship
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