A typical flow of information in a signal transduction pathway would be:
A. receptor ? G protein ? second messenger ? biological response
B. hormone ? second messenger ? GPCR ? biological response
C. hormone ? second messenger ? GPCR
D. hormone ? receptor ? second messenger ? GPCR ? biological response
E. GPCR ? second messenger ? biological response
ANS: A
You might also like to view...
Hearing your cell phone ring in an otherwise quiet lecture hall is an example of which of the following types of nervous system functions?
a) Sensory function b) Integrative function c) Motor function d) More than one of the types of nervous system functions e) None of the types of nervous system functions
The part of the skin at the bottom of the picture, seen in a lighter shade of gray, is the
A) strata. B) carotene. C) dermis. D) cornified region. E) hypodermis
Pulse deficit ________
A) is the difference between systolic and diastolic pressure B) can be palpated easily at the ankle C) refers to the gradual lowering of pressure in an artery D) is the difference between the apical and radial pulses
Epithelial cells lining the internal passageways of the genitourinary tract usually have ________ at their free surface
A) mitochondria B) cilia C) microvilli D) junctional complexes E) Golgi complexes