Biochemistry Foundations: Hemoglobin and Functional Groups

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Questions and Answers

What percentage of the hemoglobin molecule's mass is composed of iron ions?

  • 0.03%
  • 30%
  • 0.3% (correct)
  • 3%

Which of the following functional groups is NOT commonly found in biomolecules?

  • Sulfhydryl
  • Hydroxyl
  • Amino
  • Phospholipid (correct)

What is the primary characteristic that determines the physical-chemical properties of a biomolecule?

  • Chemistry of its functional groups and their disposition (correct)
  • Molecular weight
  • Presence of carbon atoms
  • Number of functional groups

What is the common element that comprises the foundation of biomolecules?

<p>Carbon (C)</p> Signup and view all the answers

Which of the following is an example of a polyfunctional biomolecule?

<p>Acetyl-CoA (C)</p> Signup and view all the answers

What are the four major classes of biomolecules essential for all living things?

<p>Carbohydrates, lipids, proteins, and nucleic acids (A)</p> Signup and view all the answers

What is a characteristic of proteins?

<p>Defined number of monomers per chain (B)</p> Signup and view all the answers

What is the main component of polysaccharides?

<p>Monosaccharides (D)</p> Signup and view all the answers

What is the definition of lipids?

<p>Organic molecules soluble in chloroform (D)</p> Signup and view all the answers

What is a characteristic of amphiphilic lipids?

<p>Hydrophilic parts and lipophilic parts are linked (A)</p> Signup and view all the answers

What is the composition of nucleic acids?

<p>Polymers of nucleotides (C)</p> Signup and view all the answers

Why are nucleic acids important?

<p>For the transmission of genetic information (D)</p> Signup and view all the answers

What is the metabolome composed of?

<p>Small organic molecules (D)</p> Signup and view all the answers

What is the typical molecular weight range of compounds that are polymerized to form macromolecules?

<p>500 or less Da (B)</p> Signup and view all the answers

What is the term for the process of forming macromolecules from smaller compounds?

<p>Polymerization (C)</p> Signup and view all the answers

What is the term for the bond that links amino acids together in a polypeptide chain?

<p>Peptide bond (C)</p> Signup and view all the answers

What is the term for the terminal end of a polypeptide chain?

<p>N-terminal (C)</p> Signup and view all the answers

What is the term for complexes formed by the assembly of macromolecules?

<p>Supramolecular complexes (D)</p> Signup and view all the answers

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