Iron and Porphyrin Flashcards
1
Q
function of hemoglobin
A
transport oxygen
2
Q
function of myoglobin
A
store oxygen
3
Q
function of cytochromes, flavoproteins
A
electron transport
4
Q
function of catalase, peroxidase
A
enzymatic function
5
Q
water soluble complex of ferric salt and a protein, apoferritin
A
ferritin
6
Q
transports the iron from hgb broken down by macrophages to normoblasts for production of new hemoglobin
A
transferrin
7
Q
most frequent micronutrient deficiency
A
iron deficiency
8
Q
stages of iron deficiency
A
depletion, deficient erythropoiesis, deficiency anemia
9
Q
- iron is mobilized from stores
- plasma ferritin decreases
- iron absorption increases
- increase in TIBC
A
iron depletion
10
Q
- iron stores depleted
- plasma iron concentration falls
- lack of iron for heme synthesis
A
iron deficient erythropoiesis
11
Q
everything low plus anemia
A
iron deficiency anemia
12
Q
- iron overload
- inborn error of absorption
- avoid vitamin C (increases ability to absorb iron)
A
hemochromatosis
13
Q
amount of free binding sites on transferrin
A
UIBC
14
Q
- produced by the liver
- important in recycling Fe
- iron is conserved and removed by Kuppfer cells
A
Haptoglobin
15
Q
elevations in porphyrin precursors as well as the porphyrins
A
neurological/psychiatric
