Trace Minerals Flashcards

1
Q

amount of trace minerals/day

A

1-100 mg

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2
Q

amount of UT minerals/day

A
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3
Q

most common mineral deficiency in US

A

iron

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4
Q

2 forms of iron

A

heme

nonheme

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5
Q

form of iron that is more absorbed is _____ and is absorbed by ______

A

heme

facilitated diffusion

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6
Q

sources of heme iron

A

beef

fish

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7
Q

heme is absorbed by facilitated diffusion using ______ and released via ______

A

Hcp1

oxygenase

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8
Q

iron transports in blood is

A

transferrin

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9
Q

storage protein for iron

A

ferritin

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10
Q

ferritin is found in (4)

A

enterocyte
spleen
liver
bone marrow

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11
Q

iron functions (3)

A

O2 transport
cytochrome
synthesis of heme

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12
Q

cytochrome important for iron function is

A

catalase

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13
Q

name of iron deficiency

A

hypochromic microcytic anemia

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14
Q

hypochromic microcytic anemia (3) symptoms

A

decrease immunity
pallor
fatigue

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15
Q

iron toxicity is called _____ and symptom is _____

A

hemochromatosis

organ damage

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16
Q

iron is transported out of enterocyte by ______ using ____

A

ferroprotein

copper

17
Q

(2) sources of nonheme iron

A

plants

supplements

18
Q

nonheme is absorbed by ______ using ____

A

facilitated diffusion

DMT (anything with +2 charge)

19
Q

nonheme is digested by _____ which requires _____

A

ferrireductase

vit C

20
Q

best source of zinc

21
Q

Zn toxicity

A

metallic taste

22
Q

Zn deficiency (3)

A

decrease taste
dermatitis
decrease immunity

23
Q

iron supplements decrease _____ absorption

24
Q

function of zinc is _____, especially ____ enzyme

A

folate digestion

conjugase

25
zinc supplements interact with ______
folic acid
26
groups at risk for iron deficiency (5)
``` 6 month- 2 y.o. boys 10-19 male runners women at child bearing age (10-44) female athletes ```
27
iron deficiency is called ____ & | (3) symptoms
hypochromic microcytic anemia decrease immunity pallor fatigue
28
zinc supplements interact with ______
folic acid
29
function of copper (3)
ATP generation collagen crosslinking iron transport out of enterocyte (ferroprotein)
30
copper is a cofactor in collagen crosslinking for ________
lysyl oxidase
31
copper deficiency (3)
``` Menkes syndrome = genetic skin depigmentation (or hair depigmentation) decrease immunity ```
32
copper toxicity is called ________ and a symptom is
Wilson's disease | Kayser-fleischer rings (copper rings around eyes)
33
sources of fluoride
toothpaste | fluorinated water
34
function of fluoride
decrease cavities
35
deficiency of fluoride leads to (2)
osteoporosis | cavitities
36
toxicity of fluoride is called ______ ; (2) symptoms
fluorosis bone pitting teeth modeling