What is the relationship between vitamins and coenzymes to enzymes? | Yahoo Answers
soluble vitamins generally act as precursors to coenzymes; the functions of the fat - The niacin derived coenzymes NAD and NADP act as soluble electron. Section Vitamins Are Often Precursors to Coenzymes. One class of these cofactors, termed coenzymes, consists of small organic molecules, many of which are derived from vitamins. Table lists the water-soluble vitamins—ascorbic acid (vitamin C) and a series known as the. Answer to Describe the relationship between vitamins and coenzymes, and explain the purpose of coenzymes in catalysis.
So two great examples are ones we just discussed.
Vitamins That Function As Coenzymes
Vitamin B3, which you may see being called niacin on a food label, is actually just a precursor for NAD. And vitamin B5 is just a precursor for co-enzyme A. Minerals, on the other hand, are inorganic, meaning they aren't carbon based. And minerals are usually just co-factors in our body. So magnesium would be a great example of a mineral co-factor that an enzyme like DNA polymerase would use.
Now, not all minerals act only as co-factors. Some minerals, like calcium, which can act as a co-factor, is also a critically important component of bone and teeth. And it doesn't strictly act as an enzyme co-factor here. It's actually an important part of the structure itself. So what did we learn?
What Are Coenzymes and How Are They Vital to Your Health?
Well, first we learned that not all enzymes are able to function alone and some need a little help. And next, we learned that this help can come from co-enzymes, which usually act as carrier molecules, or co-factors, which directly assist with the catalysis that the enzyme is doing. And finally, we learned that the vitamins and minerals generally refer to dietary co-factors and co-enzymes.
Coenzymes also help attract the correct compounds and repel incorrect compounds to the active site of their enzyme. This is an important function of coenzymes because of a phenomenon called competitive inhibition. In competitive inhibition, the wrong compound binds to an enzyme's active site, preventing the enzyme from carrying out its duty.
Why Are Coenzymes Essential? If you've ever wondered why certain conditions develop as a result of vitamin deficiencies, one answer is that some vitamins are converted into coenzymes. In the absence of those vitamins, some enzymes won't be able to perform their duties correctly or at all.
This is why certain forms of vitamins are better than others and why some vitamins are considered metabolically inactive. Coenzymes are largely responsible for the transfer of functional groups active sections or arms of chemical compoundselectrons, hydrogens, and energy.
Some even enhance the stability or reactivity of an enzyme's product. Collagen synthesized in the absence of ascorbate is less stable than the normal protein.
- What is the relationship between vitamins and coenzymes to enzymes?
- What Are Coenzymes and How Are They Vital to Your Health?
- Co-factors, co-enzymes, and vitamins
Studies of the thermal stability of synthetic polypeptides have been especially informative. Hydroxyproline stabilizes the collagen triple helix by forming interstrand hydrogen bonds.
The abnormal fibers formed by insufficiently hydroxylated collagen contribute to the skin lesions and blood-vessel fragility seen in scurvy. Vitamin A retinol is the precursor of retinal, the light-sensitive group in rhodopsin and other visual pigments Section A deficiency of this vitamin leads to night blindness. In addition, young animals require vitamin A for growth.