Protein structure and function part one

Question 1

What is a protein

Answer 1

A molecule made up of amino acids

Question 2

What’s an amino acid

Answer 2

Contains 2 functional groups amine and carboxylic acid and side chain

Question 3

Each amino acid is called a …

Answer 3

residue

Question 4

An amino acid is numbered starting and ending with what termini

Answer 4

N-terminus and C-terminus

Question 5

Are peptide bonds polar or non-polar

Answer 5

polar

Question 6

How is a peptide group formed what does the nitrogen and oxygen have

Answer 6

N lone pairs (delocalised)
oxygen patial -ve charge

Question 7

What are sidechains also known as

Answer 7

R group

Question 8

A small side chain means …

Answer 8

more flexible

Question 9

Amino acids are classified as

Answer 9

hydrophobic and hydrophillic

Question 10

amide bond partial makes the bond …

Answer 10

harder to rotate

Question 11

Trans or cis the most stable

Answer 11

Trans

Question 12

What are the properties influenced by in ionisation of amino acids

Answer 12

ionic states of carboxyl and amino groups

Question 13

The ionisation of amino acids contain both …

Answer 13

acidic and basic forms

Question 14

What is the primary structure

Answer 14

linear sequence of amino acids in protien form

Question 15

Define homologous

Answer 15

sequences that can be aligned

Question 16

What are the uses of primary structure

Answer 16

genetic diseases due to single amino acid mutations
human genome project - gives sequences of all human proteins