#Question id: 870
#Unit 1. Molecules and their Interaction Relevant to Biology
Choose correct statements about ‘Protein Disulfide Isomerase’ in protein folding
A. Oxidized PDI catalyzes the rearrangement of a polypeptide’s non-native disulfide bonds via disulfide interchange reactions to yield native disulfide bonds.
B. Reduced PDI catalyzes the initial formation of a polypeptide’s disulfide bonds through the formation of a mixed disulfide.
C. Protein disulfide isomerase contains the conserved active site motif of Cys-Xaa-Xaa-Cys found in thioredoxin and shares a similar role to the Dsb family of proteins found in E. coli.
D. Under more reducing conditions with thiols in the active site the enzyme reshuffles disulfides (isomerase) in target proteins.
#Question id: 11708
#Unit 7. System Physiology – Animal
Use the following clinical laboratory test results:
Urine flow rate = 1 ml/min
Urine inulin concentration = 100 mg/ml
Plasma inulin concentration = 2 mg/ml
Urine urea concentration = 50 mg/ml
Plasma urea concentration = 2.5 mg/ml
What is the glomerular filtration rate (GFR)?
#Question id: 3991
#Unit 3. Fundamental Processes
Attenuation in the trp operon of E. coli:
#Question id: 10952
#Unit 7. System Physiology – Animal
Which of the following blood units carries the least risks for inducing an immediate transfusion reaction into a B+ (B, rhesus positive) recipient?
#Question id: 19745
#Unit 3. Fundamental Processes