Lecture 1

Question 1

What are the properties of biomolecules determined by?

Answer 1

determined and constrained by the chemistry of their functional groups.

Question 2

What is a functional group?

Answer 2

specific groupings of certain atoms within molecules that have their own characteristic properties.

Question 3

How is an amide formed?

Answer 3

An amide is formed by the reaction of a carboxylate (if protonated, a carboxylic acid) and an amine, with the loss of water – condensation

Question 4

What is condensation?

Answer 4

a reaction in which a new covalent bond is formed with the release of water.

Question 5

What are proteins made up of?

Answer 5

polyamide chains formed from amino acids

Question 6

Can amines hydrogen bond to each other?

Answer 6

Yes

Question 7

How do hydrogen bonds arise?

Answer 7

when a hydrogen atom is shared between two electronegative atoms, such as nitrogen and oxygen.

Question 8

What give protein much of their structure?

Answer 8

H-bonding between amides

Question 9

What 2 groups do amides form from? What part of a protein structure do amides make up?

Answer 9

A carboxylate and an amine can form an amide, and Amides can hydrogen bond with each other