AQA Biology A-Level: Monomers and Polymers Chemical Reactions Quiz

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Questions and Answers

Which type of chemical reaction is involved in the conversion of polymers to monomers?

  • Synthesis reaction
  • Combustion reaction
  • Redox reaction
  • Hydrolysis reaction (correct)

What type of chemical reaction converts monomers to polymers?

  • Neutralization reaction
  • Polymerization reaction (correct)
  • Decomposition reaction
  • Oxidation reaction

Which of the following is NOT a named example of a polymer?

  • Starch (monomer: glucose)
  • Amylase (monomer: amino acids) (correct)
  • DNA (monomer: nucleotides)
  • Cellulose (monomer: glucose)

In the conversion process from polymers to monomers, what role does water play?

<p>Water is added (B)</p> Signup and view all the answers

Which letter in the diagram represents a macromolecule made up of repeating units?

<p>B (A)</p> Signup and view all the answers

Which letter in the diagram represents a simple molecule that is not a polymer?

<p>A (A)</p> Signup and view all the answers

Match the following terms with their definitions:

<p>Monomers = Single units that can join together to form polymers Polymers = Long chains of repeating units formed by the combination of monomers Chemical reactions involved in conversion to monomers = Hydrolysis Chemical reactions involved in conversion to polymers = Dehydration synthesis</p> Signup and view all the answers

Match the following polymers with their associated monomers:

<p>Starch = Glucose Proteins = Amino acids DNA = Nucleotides Cellulose = Glucose</p> Signup and view all the answers

Match the following letters in the diagram with their corresponding molecules:

<p>A = Simple sugar (monosaccharide) B = Amino acid C = Nucleotide D = Fatty acid</p> Signup and view all the answers

Match the following statements with the correct terms:

<p>Role of water in conversion to monomers = Breaking bonds through hydrolysis Role of water in conversion to polymers = Formation of bonds through dehydration synthesis Function of proteins in organisms = Enzymes, structure, and transport Function of DNA in organisms = Genetic information storage and transmission</p> Signup and view all the answers

Match the following biological molecules with their primary function:

<p>Carbohydrates = Short-term energy storage and structural support Lipids = Long-term energy storage and cell membrane structure Proteins = Enzymes, hormones, and immune function Nucleic acids = Genetic information storage and protein synthesis</p> Signup and view all the answers

Match the following terms with their role in biological systems:

<p>Enzymes = Biological catalysts that speed up chemical reactions Hormones = Regulatory molecules that control various physiological processes ATP (Adenosine Triphosphate) = Energy currency of cells used for cellular processes Antibodies = Proteins that help the immune system identify and neutralize pathogens</p> Signup and view all the answers

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