Amino acids with polar or charged side chains form hydrogen bonds. They are:
Hydrogen bonds require more than simply the presence of hydrogen. They require atoms that are capable of electron donation and hydrogen atoms that are connected to atoms with a specific set of characteristics relating to electronegativity, size, orbital characteristics, etc. The details of hydrogen bonds are discussed on Wikipedia, but for practical purposes, hydrogen bonds occur where molecules contain -OH or -NH- groups (HF also exhibits hydrogen bonding, but is irrelevant to this discussion).
Of the 20 common amino acids, those with side groups capable of hydrogen bond formation are: arginine, histidine, lysine, serine, threonine, asparagine, glutamine, tryptophan and tyrosine.
there are five polar amino acids that are hydrophilic... serine, threonine, asparagine, glutamine and tyrosine
If you are talking about protein folding, hydrogen bonds between amino acids in a chain allow protein to fold.
Charged amino acids!
Positively charged--Arginine, lysine
Negatively charged-Aspartic acid, glutamic acid.
These can also involve in H bonding.
amino acids with non polar side chains
All could.
Polypeptide bonds....polypeptide bonds equal proteins ;)
Amino acids are the building block units of a polypeptide chain or a protein. These amino acids are linked together through peptide bonds.
four
Polypeptides are chains of amino acids linked by peptide bonds.
DNA is made of two strands (chains) of DNA nucleotides that are twisted, forming a double helix, often compared to a twisted ladder. The two strands are held together by hydrogen bonds between the nitrogen bases.
ionic
Polypeptide bonds....polypeptide bonds equal proteins ;)
Amino acids are the building block units of a polypeptide chain or a protein. These amino acids are linked together through peptide bonds.
No. Tyrosine is an amino acid that forms peptide bonds with the others in polypeptide chains.
peptide bond
four
They are [accurately] termed to be peptide bonds.
Carbon
Proteins are complex molecules of amino acids.
Yes Yes
Chains of amino acids (forming proteins) fold as cysteines in different places attach to each other (its the only amino acid that can form a disulfide bond with another cysteine). Original Answer: lol , IB Biology 11. Biozone: Senior Biology 1 page 58 question #8
DNA is formed out of proteins, mutations can cause the bonds between the chains to loosen or not form at all. It may also cause additonal bonds forming and changet the order of amino acids involved in the chain.