Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Chemistry AQA
  5. Question bank

Amino acids, proteins and DNA (A-level only)

EasyMedium
12345678910111213141516171819202122
Question 12

Which structure shows the zwitterion of an amino acid?

H3N+−CH−COO−∣CH2−CH2−COO− \begin{array}{c} \text{H}_3\text{N}^+ - \text{CH} - \text{COO}^- \\ \vert \\ \text{CH}_2 - \text{CH}_2 - \text{COO}^- \end{array} H3​N+−CH−COO−∣CH2​−CH2​−COO−​
H3N+−CH−COOH∣CH2−CH2−CH2−CH2−NH3+ \begin{array}{c} \text{H}_3\text{N}^+ - \text{CH} - \text{COOH} \\ \vert \\ \text{CH}_2 - \text{CH}_2 - \text{CH}_2 - \text{CH}_2 - \text{NH}_3^+ \end{array} H3​N+−CH−COOH∣CH2​−CH2​−CH2​−CH2​−NH3+​​
H2N−CH−COO−∣CH(OH)CH3 \begin{array}{c} \text{H}_2\text{N} - \text{CH} - \text{COO}^- \\ \vert \\ \text{CH}(\text{OH})\text{CH}_3 \end{array} H2​N−CH−COO−∣CH(OH)CH3​​
H3N+−CH−COO−∣CH3 \begin{array}{c} \text{H}_3\text{N}^+ - \text{CH} - \text{COO}^- \\ \vert \\ \text{CH}_3 \end{array} H3​N+−CH−COO−∣CH3​​

Amino acids, proteins and DNA (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Amino acids, proteins and DNA (A-level only)