Biochem part 2 Vitamins/minerals

Question 1

Vit. B1 aka

Answer 1

Thiamine

Question 2

Vit. B2 aka

Answer 2

Riboflavin

Question 3

Vit. B3 aka

Answer 3

Niacin

Question 4

Vit. B5 aka

Answer 4

Pantothenic acid

Question 5

Vit B6 aka

Answer 5

Pyridoxine

Question 6

Vit B7 aka

Answer 6

Biotin

Question 7

Vit B9 aka

Answer 7

Folic acid/folate

Question 8

Vit B12 aka

Answer 8

Cobalamin

Question 9

Wernicke-Korsakoff syndrome is a result of a deficiency in _______, mostly seen in which population

Answer 9

B1 Thiamine

alcoholics

Question 10

Beri Beri results from a deficiency in ____

Answer 10

B1 Thiamine

Question 11

Vit B1 is involved in which type of reactions

Answer 11

Decarboxylation

Question 12

Active form of B2 Riboflavin

Answer 12

FAD

-Flavin-adenine-dinucleotide

Question 13

t/f B2 Riboflavin is destroyed by heat

Answer 13

False, destroyed by light

Question 14

Magenta tongue is associated with a deficiency in ____

Answer 14

B2 riboflavin

-also angular stomatitis, cheilosis

Question 15

Pellagra is associated with a deficiency in ____

Answer 15

B3 Niacin

Question 16

4D’s assoc. with Pellagra

Answer 16

Dementia
Diarrhea
Dermatitis
Death

Question 17

Active form of B3 niacin

Answer 17

NAD+ and NADP

Nicatinamide adenine dinucleotide

Question 18

Vit B2 and B3 are both involved in which types of reactions

Answer 18

Oxidation / Reduction

Dehydrogenase enzymes

Question 19

B3 Niacin is derived from which AA

Answer 19

Tryptophan

from nicatinamide

Question 20

Which B vitamin is a structural component of CoA

Answer 20

B5 Pantothenic

Question 21

Burning foot syndrome is related to a deficiency in ____

Answer 21

B5 Pantothenic

Question 22

t/f B5 pantothenic acid is destroyed by heat

Answer 22

True

Question 23

Transanimation reactions involve which Vitamin

Answer 23

B6 Pyridoxine
“my trans am has a B6 engine”
-Ketoacid –> Amino Acid

Question 24

B7 Biotin is involved in which type of reaction

Answer 24

carboxylation

Question 25

Avidin found in egg whites depletes which vitamin

Answer 25

B7 Biotin

Question 26

t/f B6 and B7 are made by the intestinal bacteria

Answer 26

True

Question 27

B9 folic acid is involved in which type of reaction

Answer 27

``` Methyl transfer (one carbon transfer) -DNA and RNA synthesis ```

Question 28

Megaloblastic anemia is associated with a deficiency in which vitamin

Answer 28

B9 Folic acid | -also Neural tube defects, spina bifida

Question 29

Pernicious anemia is associated with a deficiency in which vitamin

Answer 29

B12 Cobalamin | -decreased intrinsic factor

Question 30

PLS (posterolateral sclerosis) aka combined systems disease is associated with a deficiency in which vitamin

Answer 30

B12 cobalamin

Question 31

Vit C enhances absorption of which mineral

Answer 31

Iron

Question 32

Most active form of Vit A

Answer 32

retinoic acid

Question 33

Form of Vit A involved in vision and growth

Answer 33

RetinAl

Question 34

Keratomalacia is assoc. with deficiency of which vitamin

Answer 34

Vit A | -degeneration of the cornea

Question 35

Excess Vit E will cause

Answer 35

diarrhea

Question 36

best source of Vit E

Answer 36

wheat germ oil

Question 37

Vitamin involved in blood clotting

Answer 37

Vit K | -production of prothrombin

Question 38

Which vitamin is a precursor to coenzyme Q

Answer 38

Vit K

Question 39

Impaired glucose intolerance may be associated to a deficiency in which mineral

Answer 39

Chromium - functions as a glucose tolerance factor - helps bind insulin to cell

Question 40

t/f a function of Magnesium is binding to ATP

Answer 40

True

Question 41

Deficiency of Magnesium may lead to (hyper/hypo) excitability

Answer 41

Hyper - binds to ATP - muscle weakness

Question 42

Transported form of iron

Answer 42

transferrin

Question 43

Storage form of iron

Answer 43

ferritin

Question 44

Hypochromic microcytic anemia is associated with a deficiency of _____

Answer 44

iron

Question 45

Cofactor for Carbonic anhydrase

Answer 45

Zinc

Question 46

B9 gives a methyl group to ____

Answer 46

B12 cobalamin

Question 47

B12 gives a methyl group to _____

Answer 47

Homocysteine

Question 48

A def. of B vit. during the remethylation cycle will cause a ______ deficiency

Answer 48

methionine

Question 49

t/f the methylation cycle aids in detox, DNA production and maintenance

Answer 49

True

Question 50

Rate limiting enzyme in Vit D synthesis

Answer 50

1-alpha-hydroxylase | in kidney

Question 51

in Vit D synthesis, Cholecalciferol is changed to 25-hydroxycholecalciferol in which organ

Answer 51

Liver

Question 52

In Vit D synthesis, which organ occurs first

Answer 52

liver --> kidney

Question 53

Most absorbable form of iron

Answer 53

Fe2+ Ferrous

Question 54

Most active form of iron

Answer 54

Fe3+ Ferric

Question 55

PTH (parathyroid hormone) (increases/decreases) serum calcium

Answer 55

Increases

Question 56

Calcitonin (increases/decreases) serum calcium and is produced in what gland

Answer 56

Decreases -"calcitonin tones down calcium" Thyroid gland