Nutrition

Question 1

Chemical name of Vitamin B1

Answer 1

Thiamine (active form thiamine pyrophosphate)

Question 2

Chemical name of Vitamin B2

Answer 2

Riboflavin (precursor of FAD, FMN)

Question 3

Chemical name of Vitamin B3

Answer 3

Niacin (precursor of NAD+)

Question 4

Chemical name of Vitamin B5

Answer 4

Pantothenic Acid (precursor of acetyl CoA)

Question 5

Chemical name of Vitamin B6

Answer 5

Pyrodoxine (active form pyridoxal phosphate)

Question 6

Chemical name of Vitamin B7

Answer 6

Biotin

Question 7

Chemical name of Vitamin B12

Answer 7

Cobalamin

Question 8

Beriberi is a deficiency of…

Answer 8

Vitamin B1 (Thiamine)

Question 9

Enzymes that need thiamine pyrophosphate as a cofactor (4)

Answer 9

1) Branched-chain ketoacid dehydrogenase
2) alpha-ketoglutarate dehydrogenase (TCA)
3) Pyruvate dehydrogenase (glycolysis to TCA link)
4) Transketolase (pentose phosphate pathway)

Question 10

Confusion, opthalmoplegia, ataxia, confabulation, personality change, memory loss (permanent). Damage to medial dorsal nucleus of thalamus, mammillary bodies. TPP deficiency

Answer 10

Wernicke-Korsakoff syndrome

Question 11

Polyneuropathy, symmetrical muscle wasting. TPP deficiency

Answer 11

Dry beriberi

Question 12

High-output cardiac failure (dilated cardiomyopathy), edema. TPP deficiency

Answer 12

Wet beriberi

Question 13

Deficiency of Vitamin B2 causes what symptoms (two C’s)

Answer 13

Cheilosis (inflammation of lips, scaling and fissures at the corners of the mouth) and corneal vascularization

Question 14

What step in the TCA cycle needs cofactors derived from a Vitamin B2 (Riboflavin)

Answer 14

Succinate dehydrogenase

Question 15

Deficiency of Vitamin B3

Answer 15

Pellagra

Question 16

Symptoms of Pellagra (3 D’s)

Answer 16

Diarrhea, Dementia, Dermatitis

Question 17

Biotin (Vitamin B7) is a necessary cofactor for the following carboxylation enzymes (3)

Answer 17

1) pyruvate carboxylase
2) acetyl-CoA carboxylase
3) propionyl-CoA carboxylase

Question 18

Phytomenadione, phylloquinone, phytonadione, menaquinone are types of…

Answer 18

Vitamin K

Question 19

Swollen gums, easy bruising, petechiae, hemarthrosis, anemia, poor wound healing, perifollicular and subperiosteal hemorrhages, “corkscrew” hair

Answer 19

Vitamin C deficiency

Question 20

Vitamin which facilitates iron absorption by reducing it to the Fe2+ state.

Answer 20

Vitamin C