Small Molecules in Cells Quiz
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Questions and Answers

Which type of bonds join the monomeric subunits in proteins, nucleic acids, and polysaccharides?

  • Van der Waals forces
  • Ionic bonds
  • Hydrogen bonds
  • Covalent bonds (correct)

What are the four most abundant elements in living organisms?

  • Sodium, potassium, calcium, magnesium
  • Carbon, oxygen, nitrogen, hydrogen (correct)
  • Phosphorus, sulfur, chlorine, iodine
  • Iron, zinc, copper, manganese

Which of the following is NOT one of the five components of membrane lipids?

  • Fatty acids
  • Phosphoric acid
  • Nitrogenous bases (correct)
  • Glycerol

What is the parent sugar from which most carbohydrates are derived?

<p>D-glucose (B)</p> Signup and view all the answers

Which of the following is true about supramolecular complexes?

<p>They are held together by covalent bonds. (C)</p> Signup and view all the answers

Which chemical element is essential for all living organisms?

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

What is the role of purifying an individual chemical component from a living organism?

<p>To characterize its structural and chemical characteristics (D)</p> Signup and view all the answers

How are macromolecules held together in supramolecular complexes?

<p>By noncovalent interactions (C)</p> Signup and view all the answers

What kind of interactions hold macromolecules together in supramolecular complexes?

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

What functional group do alcohols contain?

<p>Hydroxyl groups</p> Signup and view all the answers

Which functional group is present in amines?

<p>Amino groups</p> Signup and view all the answers

What type of functional group do aldehydes and ketones have?

<p>Carbonyl groups</p> Signup and view all the answers

What functional group is found in carboxylic acids?

<p>Carboxyl groups</p> Signup and view all the answers

What types of structures can covalently linked carbon atoms in biomolecules form?

<p>Linear chains, branched chains, and cyclic structures</p> Signup and view all the answers

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