Trace Minerals Flashcards
amount of trace minerals/day
1-100 mg
amount of UT minerals/day
most common mineral deficiency in US
iron
2 forms of iron
heme
nonheme
form of iron that is more absorbed is _____ and is absorbed by ______
heme
facilitated diffusion
sources of heme iron
beef
fish
heme is absorbed by facilitated diffusion using ______ and released via ______
Hcp1
oxygenase
iron transports in blood is
transferrin
storage protein for iron
ferritin
ferritin is found in (4)
enterocyte
spleen
liver
bone marrow
iron functions (3)
O2 transport
cytochrome
synthesis of heme
cytochrome important for iron function is
catalase
name of iron deficiency
hypochromic microcytic anemia
hypochromic microcytic anemia (3) symptoms
decrease immunity
pallor
fatigue
iron toxicity is called _____ and symptom is _____
hemochromatosis
organ damage
iron is transported out of enterocyte by ______ using ____
ferroprotein
copper
(2) sources of nonheme iron
plants
supplements
nonheme is absorbed by ______ using ____
facilitated diffusion
DMT (anything with +2 charge)
nonheme is digested by _____ which requires _____
ferrireductase
vit C
best source of zinc
oysters
Zn toxicity
metallic taste
Zn deficiency (3)
decrease taste
dermatitis
decrease immunity
iron supplements decrease _____ absorption
zinc
function of zinc is _____, especially ____ enzyme
folate digestion
conjugase