The activator for chrome oxidase is?
Correct answer: A. Fe+2
- A. Fe+2
- B. Zn+2
- C. Mg+2
- D. None of these
Explanation
Option A is correct.The activator for cytochrome oxidase is Fe2+. Cytochrome oxidase is an enzyme that is found in the electron transport chain of mitochondria. It is the final enzyme in the electron transport chain, and it catalyzes the reduction of oxygen to water. The cofactor for cytochrome oxidase is heme a3, which is a metal-containing molecule. The iron atom in heme a3 is in the Fe2+ state. This iron atom is the site of oxygen reduction. The Fe2+ state is the most active state of iron for oxygen reduction. When Fe2+ is oxidized to Fe3+, it is less active for oxygen reduction. The Fe2+ cofactor is essential for the activity of cytochrome oxidase. Without the Fe2+ cofactor, cytochrome oxidase would not be able to reduce oxygen to water.
Last updated
About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A common carbohydrate composed of glucose and fructose joined by a linkage between C-1 of glucose and C-2 of fructose is:
A complex aminoacid subunits is called?
A compound produced as a result of a chemical reaction of an alcohol with an acid, where a water molecule is released, is called:
A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called_.
A dipeptide glycylalanine consists of: