FRUSTRATING QUESTION: Condensation Reactions with Covalent Bonds

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Discussion Overview

The discussion revolves around the synthesis of macromolecules through condensation reactions and the role of covalent bonds between monomers. Participants explore which macromolecules—nucleic acids, triglycerides, carbohydrates, and proteins—are formed through these processes, focusing on their respective monomers and the nature of the bonds involved.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant asserts that nucleic acids form through condensation reactions via phosphodiester linkages, questioning if this constitutes a covalent bond.
  • Another participant agrees that triglycerides form covalent bonds and suggests they are synthesized through condensation reactions.
  • A participant expresses confidence that carbohydrates undergo condensation reactions involving covalent bonds.
  • It is noted that proteins form through peptide bonds, which are also believed to arise from condensation reactions.
  • Questions are raised about the definition of monomers for each macromolecule and the number of monomers involved in their formation.
  • One participant suggests that while all four macromolecules are formed through condensation reactions, not all are formed from bonds between monomers, specifically mentioning that triglycerides are not composed of monomers.

Areas of Agreement / Disagreement

Participants generally agree that nucleic acids, carbohydrates, and proteins are formed through condensation reactions involving monomers. However, there is disagreement regarding triglycerides, with some participants asserting they do not consist of monomers.

Contextual Notes

There are unresolved questions regarding the definitions of monomers for each macromolecule and the specific number of monomers involved in their synthesis. The discussion does not clarify the exact nature of the bonds in triglycerides.

Who May Find This Useful

This discussion may be useful for students or individuals studying biochemistry or molecular biology, particularly those interested in macromolecule synthesis and the role of covalent bonds.

bengalkitties
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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.
 
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What are monomers in each case? How many of them? How many monomers per macromolecule?
 
As you correctly noted, all four are formed through condensation reactions. Not all of them are formed from bonds between monomers, however.
 
Borek said:
What are monomers in each case? How many of them? How many monomers per macromolecule?

So would it be only proteins carbohydrates, and nucleic acids 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 help!
 

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