Biology

Endocrine and Metabolic Disorders

617 Questions

Endocrine and metabolic disorders focus on diseases caused by hormonal imbalances, such as goitre, diabetes mellitus, and hyperthyroidism. Test takers will find questions related to disease causes, diagnostic tests like Cushing's syndrome indicators, and clinical treatments. This is a crucial biology topic frequently asked in medical entrance and public service commission examinations.

Thyroid gland disordersGoitre causesDiabetes mellitus characteristicsHyperthyroidism treatmentsGrowth hormone deficiency

Endocrine and Metabolic Disorders Questions

Multiple choice

What is the term for a condition in which the pituitary gland produces excessive amounts of growth hormone?

  1. Acromegaly

  2. Gigantism

  3. Dwarfism

  4. Hypothyroidism
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Acromegaly refers to excessive growth hormone production in adults, leading to abnormal bone growth and enlargement of hands, feet, and facial features. Gigantism, on the other hand, is excessive growth hormone production in children, resulting in abnormally tall stature.

Multiple choice

What is the role of iodine in thyroid hormone production?

  1. It is a component of thyroid hormones

  2. It stimulates the release of thyroid hormones

  3. It inhibits the production of thyroid hormones

  4. It has no role in thyroid hormone production
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Iodine is an essential component of thyroid hormones. It is incorporated into the structure of T4 and T3.

Multiple choice

Which of the following is a symptom of hypothyroidism?

  1. Weight gain

  2. Increased heart rate

  3. Heat intolerance

  4. Frequent urination
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Weight gain is a common symptom of hypothyroidism, which is a condition where the thyroid gland does not produce enough thyroid hormones.

Multiple choice

What is the most common cause of hypothyroidism?

  1. Hashimoto's thyroiditis

  2. Graves' disease

  3. Thyroid cancer

  4. Iodine deficiency
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hashimoto's thyroiditis is the most common cause of hypothyroidism. It is an autoimmune disorder where the body's immune system attacks the thyroid gland.

Multiple choice

What is the most common cause of hyperthyroidism?

  1. Graves' disease

  2. Hashimoto's thyroiditis

  3. Thyroid cancer

  4. Iodine deficiency
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Graves' disease is the most common cause of hyperthyroidism. It is an autoimmune disorder where the body's immune system produces antibodies that stimulate the thyroid gland to produce too much thyroid hormones.

Multiple choice

How is hypothyroidism treated?

  1. Thyroid hormone replacement therapy

  2. Antithyroid medications

  3. Radioactive iodine therapy

  4. Surgery
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hypothyroidism is treated with thyroid hormone replacement therapy, which involves taking synthetic thyroid hormones to replace the hormones that the thyroid gland is not producing.

Multiple choice

How is hyperthyroidism treated?

  1. Antithyroid medications

  2. Radioactive iodine therapy

  3. Surgery

  4. Beta-blockers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hyperthyroidism is initially treated with antithyroid medications, which block the production of thyroid hormones. Radioactive iodine therapy or surgery may be used if antithyroid medications are not effective.

Multiple choice

Which of the following conditions is associated with an enlarged thyroid gland?

  1. Goiter

  2. Hypothyroidism

  3. Hyperthyroidism

  4. Thyroid cancer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Goiter is a condition characterized by an enlarged thyroid gland. It can be caused by various factors, including iodine deficiency, autoimmune disorders, and thyroid nodules.

Multiple choice

What is the primary role of the thyroid hormones in metabolic regulation?

  1. Stimulation of basal metabolic rate

  2. Regulation of body temperature

  3. Control of growth and development

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Thyroid hormones, including thyroxine (T4) and triiodothyronine (T3), play a crucial role in metabolic regulation. They stimulate the basal metabolic rate, regulate body temperature, and control growth and development.

Multiple choice

Which of the following is a risk factor for developing parathyroid adenoma?

  1. Age

  2. Gender

  3. Family history

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Parathyroid adenoma is more common in people over the age of 50, in women, and in those with a family history of the disease.

Multiple choice

What is the term for the condition in which a female athlete has high levels of testosterone?

  1. Hyperandrogenism

  2. Polycystic ovary syndrome

  3. Cushing's syndrome

  4. Addison's disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hyperandrogenism is the condition in which a female athlete has high levels of testosterone. This can lead to the development of male secondary sexual characteristics, such as increased muscle mass, facial hair, and a deep voice.

Multiple choice

Which of the following is a potential risk factor for postpartum thyroiditis?

  1. History of thyroid disease

  2. Autoimmune disorders

  3. Stress

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A history of thyroid disease, autoimmune disorders, and stress are all potential risk factors for postpartum thyroiditis, which is an inflammation of the thyroid gland that can occur after childbirth.

Multiple choice

Which of the following is an example of an autoimmune disease:

  1. Type 1 diabetes

  2. Multiple sclerosis

  3. Rheumatoid arthritis

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Type 1 diabetes, multiple sclerosis, and rheumatoid arthritis are all examples of autoimmune diseases.

Multiple choice

What is the term for the condition of having a deficiency of iodine?

  1. Goiter

  2. Cretinism

  3. Hypothyroidism

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Goiter, cretinism, and hypothyroidism are all conditions caused by a deficiency of iodine.

Multiple choice

Which nutrient deficiency is associated with the development of goiter, an enlargement of the thyroid gland?

  1. Iodine

  2. Selenium

  3. Zinc

  4. Magnesium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Iodine deficiency is the primary cause of goiter, as iodine is essential for the production of thyroid hormones, which regulate metabolism and growth.