Anthrax toxin functions by altering levels of cAMP.The toxin also contains an edema factor,which requires the activity of calmodulin (CaM)for proper function.Based on this information,which of the following can you conclude?
A)The toxin alters cAMP dependent cell signaling.
B)Calcium levels affect the function of the edema factor.
C)Unlike other toxins,the anthrax toxin does not function by altering biochemical signaling.
D)A and B
E)A and C

Question

Quizplus · Accepted Answer

The statement that "the toxin alters levels of cAMP" indicates that the toxin affects cAMP-dependent cell signaling, which supports choice A. The statement that "the toxin also contains an edema factor, which requires the activity of calmodulin (CaM) for proper function" suggests that calcium levels affect the function of the edema factor, which supports choice B. The statement does not provide any indication that choice C is true, so it can be excluded. Therefore, the best answer is D, as both options A and B are supported by the given information.

Anthrax Toxin Functions by Altering Levels of CAMP