Is the tertiary structure of a protein the bonding together of several polypeptide chains by weak bonds? I Know tehre are weak bonds invovled by everything I looke at shows single chains.

Any kind of bonding can contribute to the tertiary structure of proteins, including hydrogen bonds, disulfide bonds, hydrophobic interactions, and even ionic bonding.

okay im confunsed. the options are a)b onding together of several polypeptide chains by weak bonds b( bonding of two amino acids together to forma dipeptidee c) order in which amino acids are joined by peptide chain d)final 3-d shape for polypeptide chain e)twisiting of peptide chain into alpha helix.

The answer is d...the final 3-d shape for the polypeptide chain. That is what is meant by tertiary structure.

choice a refers to secondary structure (sounds like beta pleated-sheet), choice b and c refer to primary structure, choice d is correct...tertiary. and choice e is secondary structure.

I have anotehr question and thanks a bunch for the help. i have a model that looks like a ribbon going down. It has c, h, n,and o (elements i s'pose) and asks what it shows, i looked on net and cannot find examples. is it alpha helix starch, alpha helix protein, polynucelotide folding into double helix, linear form of glucose

Tough to answer this one, Michael, without actually seeing model. "ribbon" thing makes me think of alpha helix; my huch would be alpha helix protein. But just an educated guess.

Based on the information provided, it is difficult to determine the exact nature of the model without actually seeing it. However, based on the elements mentioned (C, H, N, O), it is likely that the model represents a biomolecule such as a protein or a nucleotide.

The reference to a "ribbon" shape suggests that it could potentially be an alpha helix protein, as alpha helices are commonly represented as coiled ribbon-like structures. However, without more specific information or visual representation, it is challenging to give a definitive answer.

To identify the model accurately, it may be helpful to consult with an instructor or refer to relevant resources such as textbooks or scientific databases that provide examples and visual representations of different biomolecules.