Predict towards which electrode would an `alpha`- amino acid migrate in an electric field at a pH > pI. Explain.

Explain isoelectric point of alpha -amino acids.

Which alpha -amino acid can cross link peptide chains ?

Explain briefly amphoteric nature of alpha -amino acids.

Explain briefly amphoteric nature of alpha -amino acids.

which of the following statement is / are correct for electrophoresis : Colloidal are uncharged particles and do not migrate towards the electrodes when electric field is applied, In electrophoresis , sol migrates either to the anode or to the cathode depending on the positively or negatively charged sol, Electrophoresis is useful for finding the charge on a sol, all of these.

The K_alpha and K_beta values of alpha -amino acids are very low. Explain.

Work done to move a charge along a closed path inside an electric field is always zero. Use this fact to prove that it is impossible to produce an electric field in which all the lines of force would be parallel straight lines and the density of their distribution would constantly increase in a direction perpendicular to the lines of force as shown in Figure.​

Two fixed identical conducting plates (alpha and beta) , each of surface areas S are charged to -Q and q, respectively, where Q>q>0. A third identical plate (y), free to move is located on the other side of the plate which charge q at a distance d. The third platea in released and colides with the plate beta . Assume the collision is elastic and the time of collision is sufficient to redistribute charge amongest beta and gamma . Find the electric field acting on the plate gamma before collision.

Give one example each of alpha -amino acid which is achiral and alpha -amino acid having more than one chiral centre.