Microminerals

Question 1

what is the point of regulation for microminerals?

Answer 1

absorption (little is excreted)

Question 2

what is the primary storage form for iron?

Answer 2

ferritin

Question 3

where are the storage sites for iron?

Answer 3

liver, bone marrow, spleen

Question 4

nonheme iron absorption is enhanced by what vitamin?

Answer 4

vitamin C (acidity helps release from food, reduces from ferric to ferrous)

Question 5

what is the interaction between copper and iron?

Answer 5

copper oxidizes ferrous iron to ferric form

Question 6

what is the result of too much iron in the ferrous form?

Answer 6

accumulation in liver

Question 7

how does iron affect zinc metabolism?

Answer 7

decreases absorption

Question 8

how does lead influence iron metabolism?

Answer 8

inhibits activity of heme synthesis

Question 9

what are the four most susceptible groups of people for iron deficiency?

Answer 9

1. infants
2. adolescents
3. premenopausal women
4. pregnant women

Question 10

what are the symptoms of iron deficiency?

Answer 10

pallor, dizziness, palpitation, pica, fatigue, dyspnea, angular stomatosis

Question 11

in order to be transported in the blood, iron must be bound to what carrier protein?

Answer 11

transferrin

Question 12

what are the functions of zinc?

Answer 12

1. enzymes - carbonic anhydrase, alcohol dehydrogenase, SOD
2. tissue / cell growth and differentiation
3. immune function
4. carbohydrate metabolism (incorporated into insulin)
5. taste

Question 13

what mineral is required for synthesis of retiniol binding protein?

Answer 13

zinc

Question 14

copper is required for what important enzymes?

Answer 14

1. ceruloplasmin - mobilization of iron
2. cytochrome C
3. SOD
4. tyrosinase - synthesis of melanin

Question 15

Keshan and Kashin-Beck’s diseases are the result of deficiency of what mineral?

Answer 15

selenium