Biochemistry *2

Which one of the following is NOT a type of polymerisation reaction?

• addition

• neutralisation

• condensation

the smallest part of a biopolymer is called:

• a monomer

• a polymer

which molecule is normally the by-product of a condensation reaction?

• hydrochloric acid

• ammonia

• water

• carbon dioxide

What is the name given to the opposite process of condensation polymerisation?

• neutralisation

• addition

• hydrolysis

Which are important features of condensation polymers?

• they must have 2 functional groups either end of the molecule

• they are synthesised by enzymes.

• they are broken down by chemical digestion

• all of the other answers are correct

Proteins are of 2 main types

• fibrous

• neither fibrous or globular

• globular

• both fibrous and globular

What makes each amino acids unique?

• the amino group

• the 'R' group

• the acid group

• none of the above

What is a 'zwitterion'?

• a neutral molecule containing opposite charges within itself

• just a silly name

Why is the 'isoelectric point' of an amino acid important?

• it conducts electricity badly at this pH

• it is electrically neutral at this pH

What is the name for the bond or link between amino acids?

• an amide

• a peptide

• a condensation

• all of these