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Delvig [45]
3 years ago
10

With regard to the functioning of the thyroid gland, which is an essential element for the manufacturing of thyroxine and triiod

othyronine?
Biology
1 answer:
Vikki [24]3 years ago
5 0

Answer:

The correct answer is- iodine

Explanation:

Thyroid glands is an important endocrine gland of the body which release hormone called thyroid hormone in the blood. It plays an important role in metabolism, brain development, and function, muscle control, etc.

The active form of thyroxine is triiodothyronine and the formation of thyroid hormone requires the availability of iodine. Four iodine atoms are present in thyroxine and 3 is present in triiodothyronine. Without iodine, they can not be produced.  

Therefore iodine is the essential element that is required for the manufacturing of thyroxine and triiodothyronine.

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Protein Folding Notes
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Explanation:

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4 0
3 years ago
The nitrogen cycle is most directly dependent upon-
vovangra [49]

Answer:

B) Nitrogen-fixing bacteria and lightning

Explanation:

Nitrogen cycle is the natural process in which atmospheric nitrogen is converted into nitrite and nitrate with the help of bacteria.

Nitrogen cycle is directly dependent on nitrogen-fixing bacteria and lightning.

As bacteria are responsible for most of the chemical conversion in the nitrogen cycle such as nitrogen fixation (first step) is done by soil bacteria (Cyanobacteria) that form ammonia, which is toxic to plants; nitrification in which ammonia is converted into nitrites and nitrates with the help of Nitrobacter and denitrification bacteria involve Pseudomonas, and Achromobacter which convert nitrite and nitrate into nitrogen.

The lightning breaks nitrogen molecules and allow  it to combine with oxygen in atmosphere which further dissolve in rain and form nitrates.

Hence, the nitrogen cycle is most directly dependent upon nitrogen-fixing bacteria and lightning and the correct option is B.

5 0
3 years ago
Sketch space filling models of a hydrogen molecule and carbon dioxide
Aleks04 [339]
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A genotype 'aa' leads to albinism in peacocks. This condition is very rarely found in nature, compared to the normal genotype, '
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3 years ago
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