Fundamental to the Old Testament understanding of joy are God's Acts in history, themost important of which is Israel's deliverance from Egypt (Exod 18:9-11).Israel's return from the Babylonian exile (Jer 31:1-19) toJerusalem is above the highest joy (Psalm 137:6).he element of joy in religion is still more prominent in the New Testament. It is the appropriate response of the believer to the good tidings of great joy which constitute the gospel (Luke 2:10). In the four Gospels, especially Luke, this element is conspicuous.
1 Obtain your tube and compare it to a control. 2  If the color is intensely deep pink after 2 days, it is positive for rapid urease hydrolysis.  If it is yellow or orange, the test is negative. The organism either does not hydrolyze urea rapidly or it cannot live in the medium.
If the urea in the broth is degraded and ammonia is produced, an alkaline environment is created, and the media turns pink. Many enterics can hydrolyze urea; however, only a few can degrade urea rapidly. These are known as ârapid urease-positiveâ organisms. Members of the genus Proteus are included among these organisms. Urea broth is formulated to test for rapid urease-positive organisms. The restrictive amount of nutrients coupled with the use of pH buffers prevent all but rapid urease-positive organisms from producing enough ammonia to turn the phenol red pink. In our lab, we only use the urease broth, not the agar.