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).
NAD (Nicotinamide adenine dinucleotide). The cellular respiration processes of all living cells make use of the coenzyme Nicotinamide adenine dinucleotide (NAD). It plays a key role in energy metabolism by accepting and donating electrons. The low energy form NAD + shown at left is raised to the high energy form NADH.The change in the form of the active nicotinamide group in NADH is indicated above. It accepts two electrons and a hydrogen in reaching the high energy state. The NAD + is used in redox reactions in the cell and acts as a reducing agent.he change in the form of the active nicotinamide group in NADH is indicated above. It accepts two electrons and a hydrogen in reaching the high energy state. The NAD + is used in redox reactions in the cell and acts as a reducing agent.