Niacin (B3) And Pantothenic Acid (B5)

Front 1

1. Which amino acids isused in the biosynthesis of nicotinate mononucleotide (NMN)?

Back 1

Tryptophan

Front 2

2. A deficiency of which B-complex vitamins would make it more difficult to convert Trp to NMN, and therefore potentiate a niacin deficiency?

Back 2

Pyridoxine

Front 3

3. Niacin deficiency is best associated with:

Back 3

Pellagra

Front 4

4. Which enzymes are bestassociated with niacin (vitamin B3)?

Back 4

Dehydrogenases

Front 5

5. 4-Phosphopantetheine is:

Back 5

A prosthetic group for acyl carrier protein.

Front 6

6. Coenzyme A.SH is associated with all of the following:

Back 6

• Porphyrin biosynthesis • Ketone body synthesis • Cholesterol synthesis • Mitochondrial b-oxidation of

fatty acids

Front 7

7. Acyl-CoA compounds are properly referred to as:

Back 7

Thioesters

Front 8

8. Lipoic acid is:

Back 8

A B-complex vitamin

Front 9

9. Approximately what amount of the dietary Trp intake is used for NMN synthesis?

Back 9

1/60th

Front 10

10. Which TCA cycle enzymes are associated with pantothenate?

Back 10

Succinate thiokinase & citrate synthase

Front 11

11. Pantothenic acid:

Back 11

Is filtered by the kidneys and excreted in urine

Front 12

12. Cholesterol biosynthesis from acetyl-CoA requires pantothenic acid (vitamin B5), but not niacin (vitamin B3):

Back 12

False