Introduction to Carbohydrates Quiz
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Questions and Answers

What is the main function of ribosome RNA?

  • Delivering amino acids to protein chains
  • Serving as a site for protein synthesis (correct)
  • Carrying the code transcribed from DNA
  • Crossing through the lipid bilayer

    • Which RNA carries the code transcribed from DNA and directs protein synthesis?

  • Messenger RNA (correct)
  • Transfer RNA
  • Lipid
  • Ribosome RNA

    • What is the role of transfer RNA in protein synthesis?

  • Serving as a site for protein synthesis
  • Crossing through the lipid bilayer
  • Carrying the code transcribed from DNA
  • Delivering amino acids to protein chains (correct)

    • Which type of molecules are lipids soluble in?

    <p>Nonpolar organic solvents</p> Signup and view all the answers

    What accounts for the solubility behavior of lipid molecules?

    <p>Large hydrocarbon portion and few polar functional groups</p> Signup and view all the answers

    How do small ions and polar molecules primarily diffuse through the cell membrane?

    <p>Using protein pores</p> Signup and view all the answers

    Which type of reactions release free energy and make it available to do work?

    <p>Spontaneous reactions</p> Signup and view all the answers

    What is the main source of biochemical energy in living organisms?

    <p>Exergonic reactions</p> Signup and view all the answers

    What is the purpose of ATP in living organisms?

    <p>Energy transportation</p> Signup and view all the answers

    Which organelle is often referred to as the cell's power plant?

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

    What occurs when one of the -PO3- groups is removed from ATP?

    <p>It releases energy</p> Signup and view all the answers

    What provides the external energy needed for photosynthesis to occur in plants?

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

    What is the reverse of ATP hydrolysis reaction known as?

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

    Which type of reactions are phosphorylation reactions?

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

    What does the Electron Transport Chain couple with ATP formation?

    <p>Oxygen reduction</p> Signup and view all the answers

    What is responsible for converting ADP to ATP in electron transport chain?

    <p>Hydrogen phosphate ion</p> Signup and view all the answers

    Where do the electrons combine with oxygen and hydrogen ions to produce water?

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

    Which event drives the conversion of ADP to ATP in the electron transport chain?

    <p>Electron transport chain energy release</p> Signup and view all the answers

    Which type of sugar contains a ketone?

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

    What is the general chemical formula for monosaccharides?

    <p>Cn(H2O)n</p> Signup and view all the answers

    What type of sugars are chiral molecules?

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

    What type of sugar does RNA contain?

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

    What is the role of lectins in biological recognition?

    <p>They play a role in biological recognition phenomena</p> Signup and view all the answers

    Which of the following is not a characteristic of monosaccharides?

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

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