#Question id: 886
#Unit 1. Molecules and their Interaction Relevant to Biology
An experiment of Anfinsen on ribonuclease A (RNase A) showed that proteins can be denatured reversibly by 2-mercaptoethanol and 8 M urea. The protein must therefore renature spontaneously;
a) Remove mercaptoethanol and then removal of the urea
b) Removal of the mercaptoethanol allows the protein to re-form disulfide bonds in the presence of oxygen and then removal of the urea
c) Removal of the denaturant (urea) and reductant (mercaptoethanol) allows the protein to renature and re-form disulfide bonds in the absence of oxygen
d) Adding a small amount of mercaptoethanol to the scrambled protein in the absence of O2 catalyzes its conversion to the active enzyme
Which one of the following steps will leads to regaining of the full activity of ribonuclease A (RNase A)
#Question id: 24561
#Unit 4. Cell Communication and Cell Signaling
Complement components can be classified into seven functional categories, representing the Proteins Involved in the Complement System in given table;
#Question id: 27011
#Unit 10. Ecological Principles
In the population, one species undergo loss and another species is neither gain nor loss, this type of interaction is___
#Question id: 11190
#Unit 7. System Physiology – Animal
For a neuron with an initial membrane potential at -70 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the ________.
#Question id: 19075
#Unit 4. Cell Communication and Cell Signaling