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Disulfide bonds
Say you're looking at cysteine and serine.Two possible combinations are: cysteine's NH2 group bonds to serine's COOH group OR cysteine's COOH group bonds to serine's NH2 group. These two different combinations of the order of the molecules makes them totally different. They are called isomers. :)
A peptide bond. Although some amino acids can form other bonds depending on their R groups (cysteine can form a disulfide bond with another cysteine... forming a cystine).
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
l cysteine as far as I know is an amino acid...found in human hair etc.....used to bond certain chemicals etc but I believe since this amino acid is found in food a few years back they outlawed the use of it unless it was scientifically engineered etc....so now they make it in a lab and they no longer use human hair...as far as I know....
I think it should be bi sulfide bond between two cysteine amine acids witch contains sulfur.(Citation needed. )
glycosidic bonds
A hydrogen bond holds DNA together and a covalent holds rna together
In sodium metal the atoms are held together by metallic bonds.
A covalent bond
A condensation reaction between the acid group of one amino acid and the amino group of another forms a covalent bond between two amino acids. A water molecule is also produced. A new bond formed is called a peptide bond.
The polar covalent bond between the hydrogen and oxygen atoms holds it together.