[fifa2005xbox]

Which of the following macromolecules are held together by covalent bonds between monomers and are synthesized through condensation reactions? Choose all correct answers.
   
Nucleic acids
   
Triglycerides
   
Carbohydrates
   
Proteins


This is what I think:
-Nucleic acids form condensations reactions through phosphodiester linkages. Would this be a type of covalent bond?
-Triglycerides definitely form covalent bonds and I think they form through condensation reactions.
-Carbohydrates: I definitely think they form condensation reactions though covalent bonds.
-Proteins: When they form peptide bond, I think they form condensation reaction.

So what do you all think? Would it be all of them? Any help on which would not be would be hugely appreciated.

[Yggdrasil]

You are correct that all of them form via condensation reactions, but not all of the molecules are formed via condensation of monomers to eachother.

[fifa2005xbox]

So would it be only proteins and carbohydrates then? The monomer of proteins are amino acids and monomer of carbohydrates are monosacharides. Nucleic acids have monomer nucleotides.

Triglcerides arent composed of monomers.

Would this be correct? This is a very important question to me and I am down to my last opportunity...please *delete me*

[Yggdrasil]

Why are you excluding nucleotides?

[fifa2005xbox]

I put in the answer nucleic acids, carbohydrates, and proteins and still got it wrong for some reason. Now that I can't turn it anymore, can you tell me what was the right answer?

This was the question:

Which of the following macromolecules are held together by covalent bonds between monomers and are synthesized through condensation reactions? Choose all correct answers.
   
Nucleic acids
   
Triglycerides
   
Carbohydrates
   
Proteins

Thanks.

[Borek]

I put in the answer nucleic acids, carbohydrates, and proteins and still got it wrong for some reason.

No idea why, this seems to be a correct answer to me. Judging from the questions and comments posted by Ygg I am not alone in my thinking.

[Yggdrasil]

Yes, I would have answered proteins, nucleic acids and carbohydrates as well.

[DrCMS]

Is the answer nucelic acid and proteins only, as some carbohydrates such as glucose and fructose etc are monosaccharides?

[fifa2005xbox]

no, i tried just proteins and carbohydrates as my first attempt and then poroteins, carbohydrates, and nucleic acids after.

i think the correct answer was all of the above. thanks to everyone who tried to *delete me*

[Borek]

Is the answer nucelic acid and proteins only, as some carbohydrates such as glucose and fructose etc are monosaccharides?

Interesting point, but

Which of the following macromolecules

question stated macromolecules, glucose won't fit.

fifa2005xbox: ask your teacher what does s/he think the correct answer is. IMHO either question is lousy worded, or the answer is wrong.