Macromolecules & Cellular Respiration Quiz
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Questions and Answers

What are the four major classes of biomolecules?

  • Monosaccharides, lipids, nucleic acids, amino acids
  • Carbohydrates, proteins, nucleic acids, lipids (correct)
  • Carbohydrates, lipids, proteins, vitamins
  • Nucleotides, steroids, fatty acids, vitamins

What determines protein conformation and why is it important?

  • The primary structure; it determines the function of the protein. (correct)
  • The quaternary structure; it determines how many subunits make up the protein.
  • The secondary structure; it influences the stability of the protein.
  • The tertiary structure; it affects the solubility of the protein.

How are glycosidic linkages formed?

  • By dehydration synthesis between two monosaccharides (correct)
  • By peptide bond formation
  • By disulfide bond formation
  • By hydrogen bond formation

How are weak interactions and disulfide bridges related to tertiary protein structure?

<p>Weak interactions stabilize the tertiary structure, while disulfide bridges destabilize it. (D)</p> Signup and view all the answers

What distinguishes nucleic acids from other major macromolecules?

<p>Nucleic acids are composed of nucleotides and play a key role in genetic information storage. (C)</p> Signup and view all the answers

What distinguishes a saturated fat from an unsaturated fat?

<p>Saturated fats have a higher melting point than unsaturated fats. (C)</p> Signup and view all the answers

What distinguishes starch glycosidic linkages from cellulose glycosidic linkages?

<p>Starch has alpha linkages while cellulose has beta linkages. (D)</p> Signup and view all the answers

How do nucleotides link together to form a nucleic acid?

<p>By forming phosphodiester bonds between sugar and phosphate groups. (C)</p> Signup and view all the answers

Which statement best describes the Central Dogma of Biochemistry?

<p>DNA is transcribed into RNA, which is then translated into proteins. (B)</p> Signup and view all the answers

What occurs during cellular respiration in the Krebs cycle?

<p>Oxidation of acetyl-CoA molecules to produce NADH and FADH2 for ATP synthesis. (A)</p> Signup and view all the answers

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