Molecules of life

• What is the topic of the study material?

  Biological Molecules
• What does the variety of life include?

  Extensive existence of fossils and living things
• What is formed when a large number of small molecules join together?

  Polymers
• What are nucleotides classified as?

  Other molecules
• What is a condensation reaction?

  It joins two molecules and eliminates water
• What does a hydrolysis reaction do?

  It breaks a bond and evolves water
• What supports the theory of evolution?

  Evidence from fossils and organism diversity
• How do fossils contribute to understanding evolution?

  They show how life changed over time
• What do all organisms contain in terms of chemical compounds?

  The same groups of basic compounds
• What does the evidence suggest about animals and plants?

  They have a common ancestor
• What are biological polymers composed of?

  Long chains of monomers
• What are monomers?

  Small, basic molecular units
• Give two examples of monomers.

  Monosaccharides and amino acids
• How are most biological polymers formed?

  By condensation reactions from monomers
• What does a condensation reaction release?

  A molecule of water
• What happens during a hydrolysis reaction?

  It breaks the bond using water
• What is the opposite of a condensation reaction?

  Hydrolysis reaction
• Why is cytochrome c considered evidence for evolution?

  It is widespread across many species
• What is a polymer?

  A long, complex molecule of monomers
• What is a monomer?

  A small, basic molecular unit
• Give two examples of monomers.

  Monosaccharides and nucleotides
• What happens in a condensation reaction between two monomers?

  A bond forms and water is released
• What type of reaction involves breaking a bond using water?

  Hydrolysis reaction
• What are the steps involved in making and breaking down polymers?

  • Making Polymers:
  • Condensation reactions join monomers
  • Water is released during the process
  • Breaking Down Polymers:
  • Hydrolysis reactions break bonds
  • Water is used in the process