Final answer:
Propionibacterium acnes is expected to test positive for triglyceride hydrolysis, due to its ability to degrade skin oils, while Helicobacter pylori should test positive for urease activity, as it uses urease to neutralize stomach acid, aiding in its survival.
Step-by-step explanation:
A positive hydrolysis test result for Propionibacterium acnes, the etiological agent of acne, would likely be seen in the test for triglyceride hydrolysis. Propionibacteria are known for their role in degrading skin oils, which are composed of triglycerides. The breakdown of these oils serves as a growth factor for these bacteria, contributing to acne formation.
For Helicobacter pylori, the etiological agent of gastric ulcers, a positive test result would be expected in the urea hydrolysis test. H. pylori produces a large amount of urease, which hydrolyzes urea to ammonia and carbon dioxide. This alkaline ammonia can neutralize stomach acid, creating a more hospitable environment for the bacteria and contributing to ulcer formation. This urease activity can be detected clinically to diagnose H. pylori infections, as the production of radioactive carbon dioxide in a breath test indicates the presence of the organism.