SAT Subject Biology Practice Question 121: Answer and Explanation

Next steps

Question: 121

11. Which biological molecule is associated with iron (Fe) ions?

A. Histone
B. Catalase
C. Chlorophyll
D. Hemoglobin
E. RNA polymerase

Correct Answer: D


Hemoglobin is a protein associated with iron ions. Iron deficiency can be a cause of anemia, or poor red blood cell function.

Previous       Next