Construct a functional signal transduction pathway by placing the following actors in the correct order:
A.upstream signaling protein
B.second messenger
C.receptor protein
D.first messenger
E.target proteins
F.downstream signaling protein
A) D, E, C, A, B, F
B) C, D, A, B, F, E
C) D, C, A, B, F, E
D) D, C, B, A, F, E

Question

Construct a functional signal transduction pathway by placing the following actors in the correct order: 
A.upstream signaling protein
B.second messenger
C.receptor protein
D.first messenger
E.target proteins
F.downstream signaling protein
A) D, E, C, A, B, F
B) C, D, A, B, F, E
C) D, C, A, B, F, E
D) D, C, B, A, F, E

Quizplus · Accepted Answer

The correct order for a signal transduction pathway is first messenger (D), receptor protein (C), upstream signaling protein (A), second messenger (B), downstream signaling protein (F), and target proteins (E). This is because the first messenger (D) binds to the receptor protein (C), which triggers a series of events involving the upstream (A) and downstream (F) signaling proteins and the second messenger (B), ultimately leading to the activation of the target proteins (E). Choice C provides the correct order for this pathway.

Construct a Functional Signal Transduction Pathway by Placing the Following