Iron

Front 1

Reduced form of Iron

Back 1

Fe2+

Front 2

Oxidized form of iron

Back 2

Fe3+

Front 3

Heme iron is found in Plant or Animal foods?

Back 3

Animal

Front 4

Non-heme iron is found in plant or animal foods/

Back 4

Plant

Front 5

Heme synthesis is initiated in the

Back 5

Mitochondrial matrix

Front 6

Hemoglobin contains four of

Back 6

Polypeptide chains, O2 molecules, Fe molecules, and heme groups

Front 7

Heme iron is transported by

Back 7

Heme Carrier Protein 1 (hcp1)

Front 8

Free Iron is reduced from Fe3+ to Fe2+ by

Back 8

Hcl and reductases

Front 9

Free iron is transported by

Back 9

DMT1

Front 10

Absorption enhancers

Back 10

Sugars, acids, acidic pH, Meat, fish

Front 11

Absorption inhibitors

Back 11

Alkaline pH, polyphenols, oxalic acid, Phytic acid,

Front 12

True or False: A lot of Fe is found free in cytosol

Back 12

false

Front 13

Heme is hydrolyzed by ____ to release Fe2+

Back 13

Heme oxygenase

Front 14

Heme is exported into circulation by

Back 14

Ferroportin

Front 15

Fe can be stored as

Back 15

Ferritin

Front 16

Increased Fe in the cell reduced the expression of what transporter

Back 16

DMT1

Front 17

Transports iron in the blood to organs

Back 17

Transferrin

Front 18

Transferrin only binds to

Back 18

Fe3+

Front 19

Iron in circulation is found mostly as

Back 19

Fe3+ oxidized form

Front 20

Every time Iron is mobilized it is found as

Back 20

Fe2+

Front 21

____ is secreted by the liver when the levels of Iron are high

Back 21

Hepcidin

Front 22

Fe bound to transferrin (Tf) is taken up by the ___ by receptor mediated endo

Back 22

Transferrin receptor (TfR)

Front 23

TfR is present at the _____ of all cells

Back 23

Plasma membrane

Front 24

Insert O2 into a substrate requiring single Fe for A.A. metab

Back 24

Monoxygenase

Front 25

Insert two O2 into a substrate for Nitric oxide synthase

Back 25

Dioxygenase

Front 26

Nitric oxide is synthesized from what A.A.

Back 26

arginine