Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

"

In humans, pyrimidine rings (C, T, U) can be degraded completely to CO₂ and NH₃ (urea excretion). That having been said, purine rings (G, A) cannot. Instead, they are degraded to the metabolically inert uric acid which is then excreted from the body. Uric acid is formed when GMP is split into the base guanine and ribose. Guanine is deaminated to xanthine which in turn is oxidized to uric acid. This last reaction is irreversible. Similarly, uric acid can be formed when AMP is deaminated to IMP from which the ribose unit is removed to form hypoxanthine. Hypoxanthine is oxidized to xanthine and finally to uric acid. Instead of uric acid secretion, guanine and IMP can be used for recycling purposes and nucleic acid synthesis in the presence of PRPP and aspartate (NH₃ donor).^{[citation needed]}

You can customize Citation Hunt by providing a list of articles. This gives you a link that you can share with others so they browse Citation Hunt limited to the articles you provided.

How would you like to create a custom Citation Hunt?

Use the search box below to find and add articles to your custom Citation Hunt. You can remove an article by clicking it in the preview below.

Please enter Wikipedia article titles to import, one per line, in the area below:

PetScan is a tool for querying Wikipedia and defining lists of articles. PetScan assigns IDs to queries so their results can be imported into other tools.

Please create your query in PetScan and paste its ID below:

Pagepile is a tool for defining lists of Wikipedia articles. Pagepile assigns IDs to lists so their results can be imported into other tools.

Please create your list in Pagepile and paste its ID below:

Please wait, your custom Citation Hunt is being computed. This may take a few minutes…

You can press Back or close this dialog to cancel.

Your custom Citation Hunt has been created!

You can copy and share the link above to allow other people to use it, or start browsing it now!

Sorry, your custom Citation Hunt failed to be created or came up empty!

Please try again and keep the following tips in mind:

When importing articles by title, double-check that the titles are correct and that you've provided one per line.
When importing PetScan queries, avoid queries that take very long for PetScan to evaluate and make sure your provided URL or PSID is valid.