Amino Acids

Question 1

Ser

Answer 1

Serine is polar but uncharged and has an -OH group

Question 2

Thr

Answer 2

Threonine is polar but uncharged and has an -OH group

Question 3

Cys

Answer 3

Cysteine is polar but unchanged and has -SH group

Question 4

Tyr

Answer 4

Tyrosine is polar but uncharged and has an -OH group

Question 5

Asp

Answer 5

Aspartatic acid/Aspartate is polar and acidic

Question 6

Glu

Answer 6

Glutamic acid/Glutamate is polar and acidic

Question 7

His

Answer 7

Histidine is polar and basic

Question 8

Arg

Answer 8

Arginine is polar and basic

Question 9

Lys

Answer 9

Lysine is polar and basic

Question 10

When pH > pKa the molecule will be

Answer 10

Deprotonated

Question 11

Acidic side chains when protonated are ……………. Charged

Answer 11

Neutrally charged

Question 12

When acidic side chains are deprotonated they will be …………Charged

Answer 12

Negatively charged

Question 13

When basic side chains are protonated they are ………. Charged

Answer 13

Positively charged

Question 14

When basic side chains are deprotonated they will be ………Charged

Answer 14

Neutrally charged

Question 15

Essential amino acids can………..

Answer 15

not be synthesised in the body

Question 16

Non-essential amino acids can………..

Answer 16

be synthesised in the body

Question 17

Glucogenic amino acids are broken down into………..

Answer 17

Pyruvate which can be fed into the glucose catalytic pathway

Question 18

Ketogenic amino acids are broken down into………..

Answer 18

Acetoacetate or Acetyl CoA which can be used in the synthesis of fatty acids and ketone bodies

Question 19

When the pH is less than the pKa then the molecule will be

Answer 19

protonated