Use the Following to Answer the Questions Below

Multiple Choice

Use the following to answer the questions below:
For each of the heme degradation characterizations, select a correct degradation product from the response list. Responses may be used more than once or need not be used at all.

-CO is produced at the same time as this substance.

A) bilirubin
B) biliverdin
C) stercobilin
D) urobilin