Question

Which of the following statements is incorrect about thyroxin?

• A. Iron is crucial for thyroxin's synthesis
• B. It controls fat metabolism, carbohydrates, and protein
• C. The thyroxin gland needs iodine for thyroxin's synthesis
• D. Thyroxin is also known as thyroid hormone

Answer 1

The correct option is A

Iron is crucial for thyroxin's synthesis

The correct option is A.

Explanation of correct option:

1. Iron helps in the formation of the red blood cells but not in the generation of thyroxine.
2. Iodine, not iron, is required for thyroxin production in the thyroid gland.

Explanations of incorrect options:

Option B:

1. Thyroid hormones, also called thyroxin, are tyrosine-based hormones generated by the thyroid gland.
2. These hormones are principally responsible for carbohydrate, protein, and fat metabolic regulation.

Option C:

1. Thyroxine and triiodothyronine are the two main hormones produced by the thyroid gland.
2. Iodine is required for thyroxine and triiodothyronine production in the thyroid gland.

Option D:

Thyroxine is also known as thyroid hormone since it is produced by the thyroid gland.

Final Answer: The incorrect statement is Iron is crucial for thyroxin's synthesis.