Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Iodine atoms are a key component of parathyroid hormone.

Verified step by step guidance

1. Step 1: Begin by identifying the key components of parathyroid hormone (PTH). Parathyroid hormone is a peptide hormone secreted by the parathyroid glands, and its structure does not include iodine atoms.
2. Step 2: Understand the role of iodine in the human body. Iodine is primarily involved in the synthesis of thyroid hormones (e.g., thyroxine (T4) and triiodothyronine (T3)) produced by the thyroid gland, not the parathyroid hormone.
3. Step 3: Compare the functions of parathyroid hormone and thyroid hormones. Parathyroid hormone regulates calcium and phosphate levels in the blood, while thyroid hormones regulate metabolism, growth, and development.
4. Step 4: Evaluate the statement provided. Since iodine is not a component of parathyroid hormone, the statement is false.
5. Step 5: Correct the false statement. The corrected statement should read: 'Iodine atoms are not a key component of parathyroid hormone; they are a key component of thyroid hormones.'

Key Concepts

Parathyroid Hormone (PTH)

Parathyroid hormone is a peptide hormone produced by the parathyroid glands that regulates calcium levels in the blood. It increases blood calcium concentration by stimulating osteoclasts to release calcium from bones, enhancing renal tubular reabsorption of calcium, and promoting the activation of vitamin D to increase intestinal absorption of calcium.

Role of Iodine in the Body

Iodine is an essential trace element primarily known for its role in the synthesis of thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3). It is not a component of parathyroid hormone, which is primarily composed of amino acids. Adequate iodine intake is crucial for thyroid function and overall metabolic health.

True/False Statements in Science

In scientific inquiry, true/false statements are used to assess understanding of factual information. When a statement is false, it is important to identify the error and provide a corrected version. This process reinforces learning and ensures clarity in scientific communication.