This contains cards to do with cie Cambridge questions
| Front | What affects the strength of a base? |
| Back | How easily the lone pair can accept a hydrogen ion.The stability of the ions formed. |
| Front | What must be done before peptides can undergo electrophoresis? Describe how the molecules are changed. |
| Back | Treat the peptides with SDS and denature them by heating.The secondary and tertiary structures are lost. The molecules become amino acid chains surronded by negative charges (from the SDS molecules that cover the chain). |
| Front | When do amino acids move towards the anode during electrohpresis? |
| Back | When they are negatively charged. This may occur when an amino acid has lost a hydrogen ion from the carboxylic acid group. |