ATI LPN
PN Learning System Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
The specificity of hormones is due to
Correct Answer: D
Rationale: Hormone specificity arises from receptors on target cells that recognize specific hormone structures.
Question 2 of 5
Which of the following is least associated with the hydrophilic hormones?
Correct Answer: D
Rationale: Hydrophilic hormones use membrane receptors and second messengers, not intracellular receptors.
Question 3 of 5
Which statement is not correct?
Correct Answer: B
Rationale: Hormone secretion adjusts dynamically, not at a constant rate, to maintain homeostasis.
Question 4 of 5
Melatonin is an antioxidant that
Correct Answer: B
Rationale: Melatonin neutralizes free radicals, protecting cells from oxidative damage.
Question 5 of 5
Which statement regarding vasopressin is incorrect?
Correct Answer: B
Rationale: Oxytocin, not vasopressin, stimulates uterine contractions.