Refer to the Figure Showing the Thyroid Gland

question 38

Multiple Choice

Refer to the figure showing the thyroid gland. Based on the figure, what can you conclude about the synthesis of thyroxine?

• A) Epithelial cells of the thyroid gland synthesize thyroglobulin from tyrosine and iodine within the epithelial cells of the thyroid gland.
• B) Iodine is added to tyrosine within the lysosome of the thyroid epithelial cell.
• C) Thyroxine is secreted into the follicular lumen of the thyroid gland.
• D) When thyroxine is secreted, it consists of three molecules of tyrosine and three to four molecules of iodine.
• E) Epithelial cells of the thyroid gland use lysosomal enzymes to digest iodinated thyroglobulin into two different forms of thyroxine.

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Definitions:

Influenza

An extremely infectious virus that affects the respiratory system, leading to high fever, significant pain, and nasal congestion, frequently happening in widespread outbreaks.

Old Age Group

A demographic term referring to older adults, often defined as individuals aged 65 years and older, with considerations for their health, social, and economic conditions.

Diagnosed Cases

Individuals who have been identified by healthcare professionals as having a specific disease or health condition.

Proportionate Mortality

The proportion of deaths caused by a specific disease out of the total number of deaths in a population during a given time period.