Which Of These Is A Logical Signal Transduction Pathway

Question: A signal molecule is also known as a(n) _____.

protein

receptor

initiator

ligand

key

Answer: ligand

Question: Which of these is the second of the three stages of cell signaling?

gene activation

reception

binding of a neurotransmitter to a plasma membrane receptor

transduction

cell response

Answer: transduction

Question: Which of these extracellular signal molecules could diffuse through a plasma membrane and bind to an intracellular receptor?

glycerol

cellulose

glucose

estrogen

starch

Answer: estrogen

Question: A(n) _____ is an example of a signal molecule that can bind to an intracellular receptor and thereby cause a gene to be turned on or off.

carbohydrate

ion

steroid

protein

nucleic acid

Answer: steroid

Question: Thyroid hormones bind to _____ receptors.

intracellular

G-protein-linked

tyrosine-kinase

plasma membrane ion-channel

steroid

Answer: intracellular