Signaling involves molecule A that binds another specific molecule B, often delivering the signal in the process. What do we call molecule A in this scenario?
a. target cell
b. receptor
c. ligand
d. enzyme
c. ligand
You might also like to view...
The mechanism by which DNA is licensed to replicate only once during each S phase involves
A) CENP-A binding to CEN DNA. B) MCM proteins binding only to CEN DNA. C) MCM proteins binding only to replicated DNA. D) MCM proteins binding only to nonreplicated DNA. E) MCM proteins binding to both replicated and nonreplicated DNA.
As energy passes through a food chain, approximately ____ percent is lost as it passes through each trophic level.
A. 10 B. 25 C. 50 D. 90
Unlike most enveloped viruses, herpes viruses involve the host ________ membrane in the formation of their envelope.
A. mitochondrial B. nuclear C. plasma D. None of the choices are correct.
The peptidoglycan of bacterial cell walls contains a carbohydrate matrix linked together by short chains of:
A. fatty acids. B. steroids. C. nucleotides. D. amino acids. E. water molecules.