MDCAT Biology MCQ #163

A patient diagnosed with severe iron-deficiency anemia shows reduced cellular respiration rates. Which electron carrier's function is most directly impaired by this deficiency?

MDCAT Biology MCQ #163

  1. Question 1

    Q1. A patient diagnosed with severe iron-deficiency anemia shows reduced cellular respiration rates. Which electron carrier's function is most directly impaired by this deficiency?

    • A) Cytochromes
    • B) Chlorophyll a
    • C) Plastoquinone
    • D) Carotenoids

    Answer: Cytochromes

    Explanation: Cytochromes contain iron-porphyrin groups for electron transfer; Chlorophyll is often confused but it contains magnesium instead of iron in its center.