Enzyme Catalysis and Genetic Code Quiz
35 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does Eukaryote mean in Greek?

  • Protein synthesis
  • True nucleus (correct)
  • Lipid production
  • Carbohydrate metabolism
  • Which type of organisms can be single-celled or multicellular?

  • Eukaryotes (correct)
  • Nucleic acids
  • Prokaryotes
  • Lipids
  • What is the ultimate source of energy for all life on earth?

  • Geothermal energy
  • Light from the sun (correct)
  • Chemical reactions
  • Radioactive decay
  • What type of organisms use light energy to synthesize carbohydrates?

    <p>Photosynthetic organisms</p> Signup and view all the answers

    In a spontaneous reaction, what is the trend of free energy (ΔG)?

    <p>Decreases</p> Signup and view all the answers

    Which type of reaction will not occur unless energy is supplied from an external source?

    <p>Endergonic</p> Signup and view all the answers

    What is favored in exothermic reactions?

    <p>&quot;Energy release&quot;</p> Signup and view all the answers

    "Exergonic" reactions are synonymous with which term?

    <p>&quot;Energy releasing&quot;</p> Signup and view all the answers

    "Endothermic" reactions are NOT favored due to:

    <p>&quot;Energy absorption&quot;</p> Signup and view all the answers

    What is Activation Energy often denoted as?

    <p>EA</p> Signup and view all the answers

    What is the relationship between the nucleotide sequence in nucleic acids and the amino acid sequence in proteins known as?

    <p>Genetic code</p> Signup and view all the answers

    Which scientists won the Nobel Prize in chemistry in 1989 for their discovery of the catalytic properties of RNA?

    <p>Thomas R Chech and Sidney Altman</p> Signup and view all the answers

    What do ribozymes refer to in the context of biological macromolecules?

    <p>Catalytic RNA molecules</p> Signup and view all the answers

    What is the key biological distinction between prokaryotes and eukaryotes?

    <p>Presence of a nucleus</p> Signup and view all the answers

    What does the term 'prokaryote' mean in Greek derivation?

    <p>'Before the nucleus'</p> Signup and view all the answers

    Which type of organisms include bacteria and archaea?

    <p>Prokaryotes</p> Signup and view all the answers

    What is RNA's role in some viruses according to many scientists?

    <p>Catalyzing self-processing</p> Signup and view all the answers

    'Hairpin ribozyme' catalyzes which processes?

    <p>Self-cleavage and joining (ligation)</p> Signup and view all the answers

    'Catalytic activity' is most commonly associated with which biological molecules?

    <p>(Proteins) amino acids</p> Signup and view all the answers

    What is a functional group in biochemistry?

    <p>An atom or group of atoms that exhibit characteristic properties</p> Signup and view all the answers

    Which type of biomolecule is derived from monosaccharides?

    <p>Polysaccharides</p> Signup and view all the answers

    What is the primary function of proteins in living cells?

    <p>Structural support and enzymatic functions</p> Signup and view all the answers

    Which biomolecule is responsible for storing genetic information in cells?

    <p>Nucleic acids</p> Signup and view all the answers

    What is the primary function of lipids in living organisms?

    <p>Energy storage and insulation</p> Signup and view all the answers

    Which of the following is NOT a type of biological macromolecule?

    <p>Fatty acids</p> Signup and view all the answers

    What is the term for the building blocks of proteins?

    <p><em>Amino acids</em></p> Signup and view all the answers

    Ribonucleic acid (RNA) is an example of which type of biomolecule?

    <p><em>Nucleic acids</em></p> Signup and view all the answers

    What forms a bond with the phosphorus atom of the free nucleotide closest to the 5' oxygen atom in nucleic acids?

    <p>3'-OH of ribose ring</p> Signup and view all the answers

    Which of the following correctly describes the directionality in macromolecules?

    <p>Starch and cellulose have α-C1toC4 linkages.</p> Signup and view all the answers

    Which biomolecule class displays catalytic activity?

    <p>Proteins</p> Signup and view all the answers

    In biological macromolecules, what does the C-terminus refer to?

    <p>The end with N-terminus</p> Signup and view all the answers

    What kind of bond joins two nucleotides in nucleic acids?

    <p>Phosphodiester bond</p> Signup and view all the answers

    Which linkage is found in cellulose but not in starch?

    <p>βC1toC4</p> Signup and view all the answers

    Which part of a nucleotide forms a bond with a neighboring nucleotide in nucleic acids?

    <p>5'-OH of ribose ring</p> Signup and view all the answers

    'Ser-Val-Tyr-Cys' is different from 'Cys-Tyr-Val-Ser' due to:

    <p>'Ser' being at the N-terminus in one and C-terminus in the other.</p> Signup and view all the answers

    More Like This

    Enzyme Catalysis and Reaction Rates Quiz
    49 questions
    Enzyme Catalysis 27
    71 questions

    Enzyme Catalysis 27

    ToughestAntagonist avatar
    ToughestAntagonist
    Coenzymes and Enzyme Catalysis Quiz
    22 questions
    Use Quizgecko on...
    Browser
    Browser