#Question id: 190
#Unit 1. Molecules and their Interaction Relevant to Biology
Ca++ or Mg++ are most likely to be part of ________, while Zn++ or Fe++ are present in ________.
#Question id: 23705
#Unit 13. Methods in Biology
#Question id: 1236
#Unit 4. Cell Communication and Cell Signaling
Arrange the following events in the proper order in which they occur during transduction of the TNF-α signal
a. phosphorylation of I-κB
b. binding of E3 ubiquitin ligase to I-κB
c. polyubiquitination of I-κB
d. nuclear localization of NF-κB
e. activation of TAK1 kinase
#Question id: 1126
#Unit 4. Cell Communication and Cell Signaling
Which of the following statement(s) is (are) true of the α subunit of a G protein?
a. It physically associates with the receptor.
b. It binds GDP.
c. It binds GTP.
d. It is a transmembrane protein.
#Question id: 55
#Unit 1. Molecules and their Interaction Relevant to Biology
The standard free energy change for the reaction A → B is −15.0 kJ · mol−1. What is the equilibrium constant for the reaction at 25°C?