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Unit 2 - Biochemistry Review

Quiz by Richelle Gibson

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19 questions
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  • Q1
    Which molecule serves as the primary energy currency of the cell?
    Glucose
    Lipids
    DNA
    Adenosine triphosphate (ATP)
    30s
  • Q2
    Which biomolecule is primarily responsible for the storage and transmission of genetic information in cells?
    Lipid
    Carbohydrate
    Protein
    Nucleic Acid
    30s
  • Q3
    What is the function of enzymes in biochemical reactions?
    Enzymes inhibit chemical reactions by increasing the activation energy needed.
    Enzymes speed up chemical reactions by lowering the activation energy required.
    Enzymes store energy for later use in cells.
    Enzymes have no effect on chemical reactions.
    30s
  • Q4
    Which of the following macromolecules is the main component of cell membranes?
    Cholesterol
    Phospholipids
    Glycogen
    Cellulose
    30s
  • Q5
    What is the term used to describe the process by which a protein loses its structure and functionality due to extreme changes in temperature or pH?
    Transcription
    Replication
    Translation
    Denaturation
    30s
  • Q6
    What is the primary function of lipids in cells?
    Facilitate protein synthesis
    Energy storage and insulation
    Maintain genetic information
    Regulate cell communication
    30s
  • Q7
    Which of the following macromolecules is composed of amino acids and plays a crucial role in cell structure and function?
    Lipid
    Nucleic acid
    Carbohydrate
    Protein
    30s
  • Q8
    What is the primary function of nucleic acids in cells?
    Provide quick energy source
    Regulate body temperature
    Store and transmit genetic information
    Facilitate muscle movement
    30s
  • Q9
    What is the chemical formula for glucose, a primary source of energy for living organisms?
    NaCl
    H2O2
    CO2
    C6H12O6
    30s
  • Q10
    What is the chemical formula for water?
    CO2
    NaCl
    H2O
    NH3
    30s
  • Q11
    Which of the following is a property of water?
    Water does not change when it freezes
    Water expands when it freezes
    Water contracts when it freezes
    Water becomes more dense when it freezes
    30s
  • Q12
    What is the pH of pure water?
    9
    7
    5
    12
    30s
  • Q13
    What is the unique property of water that allows it to form droplets and create surface tension?
    Ionic bonding
    Hydrogen bonding
    Covalent bonding
    Van der Waals forces
    30s
  • Q14
    What is the main function of water in the human body?
    Providing energy
    Transporting oxygen
    Regulating body temperature
    Building muscles
    30s
  • Q15
    What is the primary reason why water is considered a universal solvent?
    Its high boiling point
    Its lack of taste
    Its ability to dissolve a wide range of substances
    Its colorless appearance
    30s

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