Examveda
Examveda

A mixture contains three similarly sized peptides P, Q and R. The peptide P is positively charged, Q is weakly negative, and R is strongly negative. If this mixture is passed through an ion-exchange chromatography column containing an anionic resin, their order of elution will be

A. P, Q, R

B. R, Q, P

C. Q, R, P

D. P, Q and R elute together

Answer: Option B


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Related Questions on Bioprocess Engineering and Process Biotechnology

During cultivation of microorganisms in a fermenter, various parameters are controlled by appropriate sensor (probe). Match each probe in Group I with the appropriate response mechanism in Group II.

Group I (Probe) Group II (Response)
P. Thermistor 1. Activation of acid/alkali pump
Q. Oxygen electrode 2. Activation of vegetable oil pump
R. Metal rod 3. Activation of hot/cold water pump
S. pH electrode 4. Increase/decrease in stirrer motor speed

A. P-2, Q-3, R-1, S-4

B. P-1, Q-2, R-4, S-3

C. P-3, Q-2, R-4, S-1

D. P-3, Q-4, R-2, S-1