Chapter 10: Micromineral (Chromium) Flashcards
differs from iron, zinc, copper, and molybdenum since it does not function in the enzyme system and it not a part of the metalloprotein complexes
it can form a complex with nicotinic acid and glutathione to form an organic compound, the glucose tolerance factor
chromium
chromium in food, exists in the trivalent form (Cr 3+)
can also occur in the more readily absorbable, _____ (GTF)
biologically active organic complex
chromium (Cr) - functions
as part of GTF, chromium the action of _____ allowing the entry of glucose into the cells and facilitating the binding of insulin to the surface of the cells
insulin
chromium (Cr) - functions
plays a role in _____ synthesis
RNA
chromium (Cr) - functions
involved in amino acid transport and in the breakdown of _____ and _____
glycogen and lipids
chromium (Cr) - functions
essential in lowering _____ levels
blood cholesterol levels
chromium (Cr) - absorption and metabolism
the absorption of inorganic (Cr 3+) is _____ than the biologically active organic complex (GTF)
poorer
chromium (Cr) - absorption and metabolism
only a small percentage of dietary Cr absorbed in the _____ (< 1%-3%)
small intestine
chromium (Cr) - absorption and metabolism
its absorption is influenced by the following factors
-amino acids
-phytate
-oxalate
-nicotinic acid
-vitamin c
chromium (cr)
chromium (Cr) - absorption and metabolism
in the blood, cr is bound to the proteins _____ (3)
albumin, transferrin, and globulin
chromium (Cr) - absorption and metabolism
kidneys excreted via the
chromium
chromium (Cr) - deficiency
impaired _____ utilization, but with normal concentrations of insulin in the blood
glucose
chromium (Cr) - deficiency
disturbed _____ metabolism
amino acid
chromium (Cr) - deficiency
elevated _____ levels leading to damage to the wall of the aorta
blood cholesterol
chromium (Cr) - deficiency
impaired growth
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