Parietal cells secrete
A) pepsinogen.
B) gastrin.
C) mucus.
D) hydrochloric acid.
E) enteropeptidase.
Question 2
When adenyl cyclase is activated,
A) ATP is consumed.
B) cAMP is formed.
C) cAMP is broken down.
D) ATP is produced.
E) ATP is consumed and cAMP is formed.