Introduction to Biochemistry
26 Questions
0 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 type of bond is formed between the oxygen atom of one water molecule and the hydrogen of another?

  • Ionic bond
  • Hydrogen bond (correct)
  • Covalent bond
  • Polar bond

    • What is the lifetime of each hydrogen bond in liquid water?

  • 1 to 20 microseconds
  • 1 to 20 nanoseconds
  • 1 to 20 picoseconds (correct)
  • 1 to 20 milliseconds

    • How many neighboring water molecules can each water molecule form hydrogen bonds with?

  • 3
  • 5
  • 2
  • 4 (correct)

    • In ice, how many other water molecules does each water molecule form hydrogen bonds with?

    <p>4</p> Signup and view all the answers

    Which type of solvent is water?

    <p>Polar solvent</p> Signup and view all the answers

    What is the main focus of biochemistry?

    <p>The study of biological processes at the cellular and molecular level</p> Signup and view all the answers

    Which discipline emerged as a combination of chemistry, physiology, and biology in the 20th century?

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

    What are examples of small molecules in cells?

    <p>Phospholipids, glycolipids, sterol, vitamins</p> Signup and view all the answers

    What type of biomolecule are amino acids and nucleotides?

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

    What gives water its unusual properties such as a higher melting point and boiling point?

    <p>Hydrogen bonding</p> Signup and view all the answers

    What is the main focus of biochemistry?

    <p>Studying the chemical processes in living organisms</p> Signup and view all the answers

    What are examples of small molecules found in cells?

    <p>Vitamins and neurotransmitters</p> Signup and view all the answers

    What are the building blocks of cells known as?

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

    What makes up 70% or more of the weight of most organisms?

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

    What gives water its unusual properties such as a higher melting point and boiling point?

    <p>Hydrogen bonding</p> Signup and view all the answers

    Which discipline emerged as a combination of chemistry, physiology, and biology in the 20th century?

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

    What is the result of the unequal electron sharing in the water molecule?

    <p>Two electric dipoles, one along each of the H—O bonds</p> Signup and view all the answers

    What is the bond dissociation energy for hydrogen bonds in liquid water?

    <p>23 kJ/mol</p> Signup and view all the answers

    What is the phrase 'flickering clusters' applied to in liquid water?

    <p>Short-lived groups of water molecules interlinked by hydrogen bonds</p> Signup and view all the answers

    What allows each water molecule to form hydrogen bonds with as many as four neighboring water molecules?

    <p>Nearly tetrahedral arrangement of the orbitals about the oxygen atom</p> Signup and view all the answers

    In ice, how many other water molecules does each water molecule form hydrogen bonds with?

    <p>4</p> Signup and view all the answers

    What type of solvent is water?

    <p>Polar solvent</p> Signup and view all the answers

    What gives water its unusual properties such as a higher melting point and boiling point?

    <p>Ionization of H2O to hydrogen ions and hydroxide ions</p> Signup and view all the answers

    What are nonpolar solvents such as chloroform and benzene poor solvents for?

    <p>Polar biomolecules</p> Signup and view all the answers

    What is the main focus of biochemistry?

    <p>Study of chemical processes within and relating to living organisms</p> Signup and view all the answers

    What type of bond is formed between the oxygen atom of one water molecule and the hydrogen of another?

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

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser