Trace Minerals - Cobalt and Iodine Flashcards

(26 cards)

1
Q

Which parts of the US require supplementation for Cobalt?

A

Certain areas of Florida and the Northeastern states

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2
Q

Functions of Cobalt

A
  1. Vitamin B12 molecule

2. Enzyme cofactor

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3
Q

Cobalt Deficiency Symptoms

A
1. General malnutrition
     listless, loss of appetite and wt, weak
2. Anemia
3. Degeneration of fat of liver
4. Breakdown products of hemoglobin
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4
Q

The only positive diagnosis of Co deficiency rests on response to…

A

Cobalt feeding

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5
Q

Minimum requirement of Cobalt is not established, however ______ is adequate.

A

0.1 ppm

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6
Q

Extremely hard pellets of a cobalt compound (Release of Cobalt is slow and lasts for several months)

A

Cobalt Bullet

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7
Q

What % of the body content of Iodine is in the thyroid gland?

A

60%

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8
Q

_________ primary function is the production of the hormone _______ which regulates the metabolic rate of the body.

A

The thyroid glands

Hormone - thyroxine

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9
Q

Thyroxine contains about ___% iodine and is a/an _______.

A

65%

Amino acid

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10
Q

Thyroxine is present in the protein…

A

Thyroglobulin (Diiodotyrosine also present)

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11
Q

Thyroxine can be synthesized by the body providing the diet contains ______ or ________.

A

Tyrosine or Phenylalanine

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12
Q

Thyroid removal results in?

A
  • Stunting development if done early in life

- In adults, premature aging, mental and physical sluggishness

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13
Q

What mineral may serve simply as a component of vitamin B12?

A

Cobalt

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14
Q

Mineral associated with thyroxine?

A

Iodine

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15
Q

Provide the principle site in the body where IODINE would be found

A

Thyroid Gland

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16
Q

Functions of Iodine

A
  1. Constituent of Thyroxine

2. Administering thyroxine stimulates body processes

17
Q

Thyroproteins stimulate body processes such as…

A

Milk and Egg Production

18
Q

Hypothyroid condition

A

LOW thyroxine secretion - low metabolic rate - tired condition; “downers”

19
Q

Hyperthyroid condition

A

HIGH thyroxine - high metabolic rate - hyperactive

20
Q

What is a common result of iodine deficiency?

A

Goiter - enlargement of the thyroid gland

21
Q

This is most likely to develop during periods of increased needs such as pregnancy and puberty - this will pass onto the offspring

A

Simple or Endemic goiter

22
Q

Due to a hyperactive gland - Graves’ disease - reverse symptoms as in hypothyroidism (above normal rate of activity)

A

Exophthalmic goiter

23
Q

What mineral is associated with the following reproductive problems?
Hairless and/or stillborn pigs

24
Q

What mineral is associated with the following reproductive problems?
Deficient newborn foals are born weak and usually die because of their inability to stand and
suckle the mare.

25
Minimum requirement of Iodine is not established, however ______ will prevent goiter
0.2-1.0 ppm
26
No practical toxicity for...
Iodine