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Flashcards in 560C Vit and Min Deck (339)
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271

How many atoms of iodine are found on the most physiologically-active form of thyroid hormone?

three (T3)

272

T/F:While cretinism specifically refers to the consequences of maternal iodine deficiency, the severe neurological symptoms of cretinism appear only in the infant, not the mother.

TRUE

273

Indicate all of the following that are classified as goitrogens (2)

1. Cabbage family vegetables
3. Lithium

274

Iodine is added to what dietary component in order to help prevent iodine deficiency?

Salt

275

T/F: Excessive supplementation with iodine can result in hypothyroidism.

TRUE

276

3 sources of fluoride?

2. Seafood
3. Grain products
4. Tea

277

Which categories of food provide the most nickel?

3. Nuts, legumes, grains

278

Which of the following groups of foods are richest in boron, providing 1.0 to 4.5 mg/100 g?

3. raisins, legumes, nuts, and avocados

279

The richest dietary sources of vanadium are _____.

2.cereal and grain products

280

What foods are rich sources of silicon?

1. whole grains and root vegetables

281

Which of the following can be considered essential for normal function of brain, bone, and liver?

3. Manganese

282

Match the micronutrients with the appropriate biological function. Arsenic, Molybdenum, Silicon, Vanadium

1. Metabolism of some amino acids
2. Collagen formation
3. Mimicks insulin
4. Sulfite metabolism

Arsenic
Silicon
Vanadum
Molybdnum

283

Match the trace elements with the biomolecules they are either functionally or therapeutically associated with: Arsenic, Cobalt, Flouride, Manganese

1. Glycosaminoglycans
2. Hydroxyapatite
3. Vitamin B12
4. S-adenosylmethionine

Manganese
Fluoride
Cobalt
Arsenic

284

Which micromineral serves as a cofactor for xanthine oxidase in the metabolism of purines, pyrimidines, and pteridines?

Molybdenum

285

Which trace element competes with iron for intestinal absorption on divalent mineral transporter 1 (DMT1)?

Nickle

286

For which TWO minerals may nickel be an effective (not an antagonistic) substitute in some enzyme systems?

Zinc and Magnesium

287

Which method was used to establish Adequate Intake recommendations for manganese?

3. Median manganese intake in typical American diets

288

A dietary supplement containing manganese at levels over twice the adult UL was shown in two studies to be effective for treating _______________. However, it is impossible to say whether manganese itself was responsible for any of this effectiveness.

Osteoarthritis

289

T/F: inorganic forms of arsenic are more toxic than are organic forms of the element.

TRUE

290

T/F: Chronic exposure to excessive arsenic could be detected reliably with hair analysis.

TRUE

291

Boron is associated with which of the following functions?

2. bone development and mediation of the inflammatory response

292

Which mineral may substitute for magnesium in the complement system?

Nickle

293

Concern exists over the amount of manganese in some supplements due to the possibility of toxic reactions in which body system?

Neurological

294

Bluish skin and nails that result from ingestion of silver over a period of time are called _____.

Argryia

295

name the n-based structural notation: gamma-linolenic acid

18:3 n-6

296

name the n-based structural notation: arachidonic acid

20:4 n-6

297

name the n-based structural notation: alpha-linolenic acid

18:3 n-3

298

name the n-based structural notation: eicosapentaenoic acid

20:5 n-3

299

Delivers fatty acids produced in the liver from carbohydrate, amino acid or fat precursors to extrahepatic cells via the action of lipoprotein lipase

VLDL

300

Delivers cholesterol to extrahepatic tissues by endocytosis of the entire lipoprotein particle

LDL