Question

Iron is an important component of -; 1) Siroheme; 2) Ferredoxin; 3) Cytochromes; 4) All of these

Answer 1

Hi Mate

The answer is

4:
All of these

hope it helps

Answer 2

Answer:

Iron is an important component of 4) All of these.

Explanation:

1. Siroheme

A heme-like prosthetic group called siroheme (or sirohaem) is located at the active site of several enzymes to carry out the six-electron reduction of sulphur and nitrogen. It functions as a cofactor at the enzyme's active site, where it converts sulfite into sulphide, which can then be integrated into the organic molecule homocysteine. This enzyme plays a significant part in the sulphur absorption pathway.

2. Ferredoxin

Iron and sulphur atoms are arranged in tiny proteins called ferredoxins as iron-sulfur clusters. The iron atoms in these biological "capacitors" can change from a +2 to a +3 oxidation state as a result of the ability to accept or discharge electrons. Ferredoxin functions in biological redox processes in this manner as an electron transfer agent.

3. Cytochromes

Redox-active proteins known as cytochromes include a heme, which has a central Fe atom at its centre, as a cofactor. They participate in redox catalysis and the electron transport chain. They are categorised based on the type of heme and how it binds. The reversible redox transition of the iron in the heme core from the ferrous (Fe(II)) to the ferric (Fe(III)) oxidation state is associated with cytochrome function.