Question

Each of the following molecules is an electron carrier in the electron transport system except

-flavoproteins.
-coenzyme Q.
-iron-containing cytochromes.
-iron-sulfur proteins.
-All of the above are electron carriers.

Answer 1

Flavoproteins, coenzyme Q, iron-containing cytochromes, and iron-sulfur proteins are all electron carriers except for flavoproteins.

Step-by-step explanation:

The electron transport system is a series of protein complexes and electron carriers located in the inner mitochondrial membrane. Each of the following molecules is an electron carrier in the electron transport system except flavoproteins, coenzyme Q, iron-containing cytochromes, and iron-sulfur proteins.

Flavoproteins, coenzyme Q, and iron-sulfur proteins are all involved in carrying electrons in the electron transport system, while cytochromes are water-soluble proteins that transfer electrons between complex III and complex IV.