Obama's 5 Greatest Speeches Ever. As President Obama is set to give his first speech of the second term of his presidency here is a look at the five best speeches of Obamaâs political career up to this point. 1. âThe Audacity of Hope,â 2004 Democratic National Convention, Boston Massachusetts. How could any other speech take the top spot on the list?
Niacin is also involved in the synthesis of protein, fat, and pentoses needed for nucleic acid formation. Niacin is a major constituent of the coenzyme nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP).These compounds function to remove hydrogen atoms during biological reactions.iacin is also involved in the synthesis of protein, fat, and pentoses needed for nucleic acid formation. Niacin is a major constituent of the coenzyme nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP).
The compound is a dinucleotide, since it consists of two nucleotides joined through their phosphate groups, with one nucleotide containing an adenine base and the other containing nicotinamide. In metabolism, NAD+ is involved in redox reactions, carrying electrons from one reaction to another.he coenzyme is therefore found in two forms in cells: NAD+ is an oxidizing agent-it accepts electrons from other molecules and becomes reduced, this reaction forms NADH, which can then be used as a reducing agent to donate electrons. These electron transfer reactions are the main function of NAD+.