organic chem

• What is a polymer?

  A long repeating chain of monomers
• What is a monomer?

  A single unit of a polymer chain
• How can a monomer be represented visually?

  As a circle
• What happens during polymerization?

  Monomers join together to form a chain
• What notation is used to show the repeating unit in a polymer?

  Brackets and a number
• What type of hydrocarbon is used in polymerization?

  Unsaturated hydrocarbon
• What is the smallest unsaturated hydrocarbon mentioned?

  Ethan
• What polymer is formed from ethan?

  Polyethene
• What is addition polymerization?

  Joining monomers to form one long chain
• What is condensation polymerization?

  Joining monomers with water as a byproduct
• What are the reactants in condensation polymerization?

  An alcohol and a carboxylic acid
• What is formed as a side product in condensation polymerization?

  Water
• What is the structure of a polyester formed from the given reactants?

  A repeating chain with ester linkages
• What are synthetic polymers made from?

  Crude oil
• Why are synthetic polymers used instead of natural products?

  They do not require land for growth
• What are some desirable properties of plastics?

  Strong, moldable, resistant, cheap
• What is a major environmental issue with plastics?

  They are not biodegradable
• What negative effects do plastics have on wildlife?

  They can suffocate or kill animals
• What are microplastics?

  Small plastic particles from clothing
• How do polymers occur naturally in the body?

  As starch and proteins
• What is starch used for in the body?

  Storage of glucose
• How many glucose monomers are in one starch polymer?

  About 1,500
• What can starch be converted into?

  Cellulose
• What is cellulose used for in plants?

  Building plant cell walls
• What is the process of amino acids forming proteins called?

  Condensation reaction
• What is the most important naturally-occurring polymer?

  DNA
• What are the four nucleotide monomers that make up DNA?

  Adenine, thymine, cytosine, guanine
• What principle does DNA polymerization work on?

  Condensation polymerization
• What is the significance of base pairing in DNA?

  Strong intermolecular forces between complementary bases
• What is the structure of DNA?

  Two polymer chains side by side
• What should you remember about DNA?

  It is a polymer
• What is the teacher's request at the end of the video?

  To like and subscribe