Which of the following statements are correct?
I. Hormones often regulate homeostasis through antagonistic functions.
II. Hormones of the same chemical class usually have the same function.
III. Hormones are secreted by specialised cells usually located in exocrine glands.
IV. Hormones are often regulated through feedback loops.
A) only II and III
B) only I and III
C) only III and IV
D) only I and IV

Question

Quizplus · Accepted Answer

Statement I is correct as many hormones regulate homeostasis through antagonistic functions, such as insulin and glucagon in regulating blood glucose levels. Statement II is incorrect as hormones of the same chemical class can have different functions, such as the different actions of different steroid hormones. Statement III is incorrect as hormones can be secreted by a variety of cells, including endocrine glands, and exocrine glands usually secrete products other than hormones. Statement IV is correct as hormones are often regulated through feedback loops, such as the hypothalamic-pituitary-adrenal axis.

Which of the Following Statements Are Correct