ATI RN
Multiple Choice Questions Endocrine System Questions
Question 1 of 5
Which gland controls basal metabolic rate (BMR)?
Correct Answer: A
Rationale: The thyroid controls BMR via T3/T4, increasing cellular energy use, setting resting metabolism. Parathyroid regulates calcium (PTH), not BMR. Testes produce testosterone, affecting muscle, not baseline metabolism. Pancreas (insulin/glucagon) manages glucose, not BMR directly. Thyroid's metabolic dominance distinguishes it, critical for energy homeostasis, unlike calcium, sex, or glucose regulators.
Question 2 of 5
Being lipid soluble, steroids can do all the following EXCEPT:
Correct Answer: A
Rationale: Steroids, lipid-soluble, diffuse across membranes, enter nuclei, and activate genes for protein synthesis (e.g., cortisol effects). They don't catalyze cAMP peptide hormones do via membrane receptors and G-proteins. This limitation distinguishes steroid mechanisms, key to genomic actions, contrasting with second-messenger systems.
Question 3 of 5
The growth hormone produced by the pituitary gland is known as
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
How is hormone secretion regulated?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Which hormone regulates carbohydrate, protein and fat metabolism in the body and iodine is essential for the synthesis of it?
Correct Answer: D
Rationale: Thyroxine (T4), synthesized in the thyroid using iodine, governs carbohydrate, protein, and fat metabolism, setting cellular energy use. Testosterone (testes) shapes male traits, insulin (pancreas) controls glucose uptake, adrenaline (adrenals) mobilizes energy acutely not broad metabolism. Iodine's necessity for thyroxine synthesis distinguishes it, critical for metabolic health, with deficiencies causing goiter or hypothyroidism, unlike other hormones.