When Iron Complexes with the Nitrogen Atoms in a Porphyrin

question 64

Multiple Choice

When iron complexes with the nitrogen atoms in a porphyrin ring, the unit is called a ________

• A)myoglobin group.
• B)porphyrate.
• C)heme group.
• D)ferrate group.
• E)hemoglobin.

---

Definitions:

Leukemia

A type of cancer that affects the blood and bone marrow, characterized by the overproduction of abnormal white blood cells.

Gel Electrophoresis

A laboratory method used to separate mixtures of DNA, RNA, or proteins according to molecular size.

Restriction Enzymes

Proteins used by bacteria to cut DNA at specific sites, widely used in molecular biology for gene cloning.