A receptor on the cell surface usually has several domains. What is the function of the external domain?
a. It function is as an enzyme.
b. It attaches the receptor to the DNA.
c. It holds the receptor within the membrane.
d. It transmits the signal to the inside of the cell.
e. It is the docking site for a signaling molecule.
e
You might also like to view...
Explain how transcriptional control by the NrpR protein of the archaeon Methanococcus maripaludis is similar to transcriptional control in bacteria. It is known that 2-oxoglutarate (2OG) is used by cells as an indicator of nitrogen deficiency
Based on what you know about effector molecules in bacterial operons, how would 2OG behave in M. maripaludis (as an inducer, a corepressor, etc.) and what effect would this molecule have on NrpR binding?
Which of the following is a function of the nucleus?
A. stores DNA B. stores sugars C. builds proteins D. packages proteins
Which class contains members that, due to their high activity and resulting need for lots of oxygen, have a closed circulatory system?
a. Bivalvia b. Scaphopoda c. Cephalopoda d. Gastropoda
At what rate does carbon monoxide bind to hemoglobin over oxygen?
A) 10´ B) 20´ C) 100´ D) 200´