lecture #4

Question 1

what do living things contain

Answer 1

nucleic acids, proteins, carbohydrates, lipids

Question 2

what is an organic compound?

Answer 2

contains Carbon
(long chains of carbon atoms can combined with many other atoms)

Question 3

what do properties of an organic molecule depend on

Answer 3

• arrangement of carbon skeleton (straight, branched or rings, long or short bonds)
• the functional groups: molecular components attached to that carbon skeleton (gives molecules distinctive chemical properties)

Question 4

what is a monomer

Answer 4

a single unit, one piece

Question 5

what is a polymer

Answer 5

a chain or ring of monomers

Question 6

How are polymers built?

Answer 6

dehydrations synthesis or condensation reaction
dehydration removes a water molecule, forming a new bond. A bond forms, water is released

Question 7

how are polymers broken down

Answer 7

Hydrolosis: water molecule is added, a bond is broken

Question 8

what are the 4 main classes of biological molecules

Answer 8

• carbohydartes
• lipids
• proteins
• nucleic acids