Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
About 90% of the thyroid hormone produced is triiodothyronine (T3).

Verified step by step guidance

Step 1: Understand the context of the problem. The thyroid gland produces two primary hormones: thyroxine (T4) and triiodothyronine (T3). These hormones play a critical role in regulating metabolism, growth, and development.

Step 2: Recall the relative proportions of T3 and T4 production. Approximately 90% of the thyroid hormone produced by the thyroid gland is thyroxine (T4), not triiodothyronine (T3). T3 is produced in smaller amounts and is primarily converted from T4 in peripheral tissues.

Step 3: Evaluate the statement provided in the problem. The statement claims that about 90% of the thyroid hormone produced is T3. Based on the information from Step 2, this statement is false.

Step 4: Correct the false statement. The corrected statement should read: 'About 90% of the thyroid hormone produced is thyroxine (T4).'

Step 5: Review the corrected statement and ensure it aligns with the physiological facts about thyroid hormone production.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Thyroid Hormones

Thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3), are crucial for regulating metabolism, growth, and development in the body. T4 is produced in larger quantities than T3, but T3 is more biologically active. Understanding the roles and production of these hormones is essential for evaluating statements about thyroid function.

Production of T3 and T4

The thyroid gland synthesizes and secretes T4 and T3, with approximately 80% of the hormone produced being T4. T4 is converted to T3 in peripheral tissues, which is why T3 is often considered the more active form. This distinction is important for accurately assessing the statement regarding the percentages of these hormones.

True/False Statements in Science

In scientific inquiry, evaluating statements as true or false requires a clear understanding of factual information and definitions. Correcting false statements involves identifying inaccuracies and providing the correct information based on established scientific knowledge, which is essential for accurate communication in the field of endocrinology.

Recommended video: