Chapter 13 Trace Minerals
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Chapter 13 Trace Minerals
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Vegans and vegeterians need to insure adequate intake of ____ and ______ due to bioavailability in non-meat sources.
Thyroid stimulating hormone (TSH) causes:
The uptake of iodine by the thyroid gland
Glutathione peroxidases require:
Fluoride is not an essential nutrient because:
It is not needed for growth, reproduction, or basic body functions
Regulation of the amount of manganese in the body is via its loss in the:
The major mechanism by which the iron in the body is regulated is :
The alteration of its absorbtion
What protein functions in the transport of iron in the blood?
Body cells regulate how much iron they take into their cells by altering:
The number of transferrin receptors located on the cell membrane
The iron storage compound that is needed for more long term storage is:
Which biochemical measurment is not able to detect early stages of iron deficiency?
The % of total blood made from red blood cells is:
High amounts of dietary iron can decrease the absorbtion of ___ because they compete for the same transport proteins.
Foods contain several forms of selenium but typically it is associated with the amino acid ________.
Severe selenium deficiency causes ______ which results in severe and even fatal heart problems
Copper and _________ are cofactors for superoxide dismutase, an enzime that protects from free radicals.
The zinc conteny of the blood is highly regulated at
The small intestine
________ is a protein that acts in a similar fashion to ferritin in that it binds zinc in the enterocytes making it unavailable for transport in to the portal vein.
Trace minerals are inorganic____ or compounds
Iron is involved in protecting the body from ____ and free radicals
Copper is important for energy metabolism, neural function, and _______ reactions.
Excess iodine is excreted in the ______.
Iodine is a component of the ______ thyroxine and triiodthyronine which are important for growth,_____,brain function, energy metabolism
thyroid hormones, development
The presence of _____ in some vegetables can decrease the incorporation of iodine in to thyroxine and triiodthyronine.
Some selenoproteins are involved in redox reactions some regulate ____ metabolism and the activation of ______
thyroid, vitamin c
Iodine toxicity causes hypo and hyper-
Food sources of selenium include nuts, seafood, meats, and ____ ______.
Chromium ___ is rare but causes high glucose concentrations, decreased insulin sensitivity, and weight loss.
__________ Manganese is absorbed and excess is excreted in the ________
Very Little, Bile
Molybdenum defiency is extremely rare but causes headaches, abnormal ____ function and visual difficulties.
Zinc is found in ______, fortified cereals, meat, legumes, chocolate.
Zinc defiency causes poor apetite, _______ failure, skin irritations, delayed physical maturation, _____.
Toxicity from zinc consumprion is rare but can influence ______ function, lipid metabolism, and apetite.
Other non-essential trace minerals that may influence health are: Nickel, Aluminum,______,______, Arsenic, Boron.
___________ is a protein in the enterocyte that regulates zinc absorbtion and elimination
_______ is an Iron-containing enzyme that helps stabilize free radicals.