Tony Is About to Participate in His First 10K Run

question 67

Multiple Choice

Tony is about to participate in his first 10K run. One of his friends told him to make sure to "carbo load" and to take a niacin supplement before the race. Tony had heard the term "carbo loading" before but was not sure why it was necessary and had n why he would need a niacin supplement. He had been training for months and was confident that he would finish the race ea therefore, did not heed his friend's advice.
On the day of the race, Tony was so excited it felt like he was flying through the first half of the race. Tony wanted to beat his current best time and was nearing the end of the race when he decided to pick up his pace to the finish line. Unfortunately, Tony became fatigued and had to walk to the finish line out of breath and with his muscles burning.
-Refer to Scenario 3.1. How could niacin supplementation have helped Tony during the race?

• A) Niacin is a B vitamin, and B vitamins are cofactors which help give enzymes their shape, and therefore, allow reactions in the body to be carried out at a much faster rate.
• B) High concentrations of niacin in the system can cause vomiting, which is good for you before a long race as it helps you lose weight.
• C) Niacin is an important coenzyme known as nicotinamide adenine dinucleotide or NAD, a derivative of vitamin B₃, which is a necessary energy -storing molecule required to produce the maximum amount of ATP's possible from glucose metabolism.
• D) Niacin is an important protein found in muscle cells.
• E) None of the answers is correct.

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