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Biochemistry Quiz: Molecules and Enzymes
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Biochemistry Quiz: Molecules and Enzymes

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Questions and Answers

Which biomolecule is primarily responsible for the storage of genetic information in living organisms?

  • Lipids
  • Nucleic acids (correct)
  • Carbohydrates
  • Proteins
  • What is the primary function of enzymes in biochemical reactions?

  • To produce heat during the reaction
  • To decrease the amount of reactants needed
  • To increase the rate of the reaction without being consumed (correct)
  • To increase the energy of the reactants
  • Which of the following statements about ATP (adenosine triphosphate) is incorrect?

  • ATP is a nucleoside triphosphate.
  • ATP is synthesized during glycolysis only. (correct)
  • ATP can store energy in high-energy phosphate bonds.
  • ATP is used in cellular signaling.
  • Which process is not directly involved in protein synthesis?

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

    Which of the following is an essential amino acid that must be obtained from the diet?

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

    Study Notes

    Nucleic Acids - Storage of Genetic Information

    • Deoxyribonucleic acid (DNA) is the primary biomolecule responsible for storing genetic information in living organisms.

    Enzymes - Catalyzing Biochemical Reactions

    • Enzymes are biological catalysts that accelerate the rate of biochemical reactions without being consumed in the process.
    • They lower the activation energy required for reactions to occur.

    Adenosine Triphosphate (ATP) - Energy Currency

    • ATP is the primary energy currency of cells, providing energy for various cellular processes.
    • It is composed of an adenine base, a ribose sugar, and three phosphate groups.
    • The energy is released when the phosphate bonds are broken.

    Protein Synthesis - Building Proteins

    • Protein synthesis is the process of creating proteins from genetic information encoded in DNA.
    • The process involves two main stages: transcription and translation.
    • Transcription is the process of copying the DNA sequence into a messenger RNA (mRNA) molecule.
    • Translation is the process of using mRNA to synthesize a protein.

    Essential Amino Acids - Dietary Requirements

    • Essential amino acids cannot be synthesized by the body and must be obtained from the diet.
    • Examples include lysine, leucine, isoleucine, valine, phenylalanine, tryptophan, methionine, threonine, and histidine.
    • These amino acids are crucial for various bodily functions, including building and repairing tissues, producing enzymes and hormones, and maintaining immune function.

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    Description

    Test your knowledge on biochemistry with this quiz focused on biomolecules, enzymes, and genetic information storage. Answer questions about ATP, protein synthesis, and essential amino acids. Perfect for students looking to review key concepts in biochemistry.

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