SB1 L139 Polymers

Which of the following is an example of a natural polymer?

• Wool

• Plastic

• Glass

• Steel

Which of the following best describes cellulose?

• A synthetic polymer found in animals

• A natural polymer made of glucose found in plant cell walls

• A protein found in plant leaves

• A fat stored in plant seeds

Which structure in the diagram is made of cellulose?

• Nucleus

• Cell wall

• Vacuole

• Chloroplasts

How are monomers connected to each other in a polymer?

• By magnetic force

• By chemical bonds

• By gravity

• By physical ties

Which of the following is a natural polymer found inside our chromosomes?

• Wool

• DNA

• Cellulose

• Cotton

Wool has springy fibres because it is a polymer made from which type of monomer?

• Glucose

• Amino acids

• Cellulose

• DNA

Why does wool have springy fibres?

• Because it is made from cellulose

• Because it is made from amino acids

• Because it is made from plastic

• Because it is made from glass

Why do scientists create different synthetic polymers?

• To make them all look the same

• Because each one has its own properties

• To reduce the number of materials available

• To make natural polymers obsolete

What does the term "synthetic" mean?

• Made deliberately by someone, not found naturally

• Found only in nature

• Made accidentally without human involvement

• Something that cannot be reproduced

Why did synthetic polymers become so common from the middle of the 20th Century?

• They could easily be made from the by-products of crude oil extraction – and cars and industry meant crude oil extraction was increasing a lot.

• They were discovered to be healthier than natural materials.

• They were the only materials available at that time.

• They were cheaper to make than any other material.