Question

function of vitaminB

Answer 1

# play an important role in keeping our bodies running like well oiled machines.

# the essential vitamin helps to convert our food into fuel allowing us to stay energized throughout the day.

Answer 2

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Vitamin B Function

B vitamins are a group of water-soluble nutrients that are necessary for life. These must be obtained through dietary sources – they cannot be synthesized independently in the body. Although they are grouped together and often referred to as vitamin B complex, each of the eight B vitamins is characterized by an important, unique role in the body.

All of the B vitamins are cofactors that work with a cognate enzyme, or chemical precursors of a cofactor. Enzymes catalyze biochemical reactions in the body - through their action, reactions that would not normally be energetically favorable can occur. Cofactors are required for the functioning of some enzymes.

Crucial Metabolic Functions

Vitamin B3 (niacin) is a good example of an important cofactor in several enzymatic reactions. In the body, it is converted to nicotinamide adenine diphosphate (NAD), which has a reduced form known as NADH and an oxidized form known as NAD+. The central metabolic reaction of living cells is oxidative phosphorylation. NADH transfers an electron to the first protein in the electron transport chain of the mitochondria, NADH-coenzyme Q oxidoreductase. The electron is transferred along the chain, generating a proton gradient across the mitochondrial membrane. The established protein gradient drives the conversion of adenosine diphosphate (ADP) to adenosine triphosphate (ATP). ATP then becomes the energy source for subsequent metabolic activity in the cell.

Essential to Life

Vitamin B6 (pyridoxine) is another vitamin that serves a cofactor in many important enzymatic reactions.

Synthesis of five neurotransmitters - serotonin, dopamine, epinephrine, norepinephrine, and gamma-aminobutyric acid (GABA)

Breaking down amino acids

Synthesis of histamine

Synthesis of serine

Synthesis of methionine and cysteine

Conversion of selenium to selenomethionine

Conversion of selenohomocysteine to hydrogen selenide, for incorporation int

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