Endocrine System Multiple Choice (ch.18)
1. What functions does the endocrine system perform? - Answer: - A) It directs long-lasting changes such as puberty and pregnancy. - B) It consists of glands that secrete hormones without using ducts. - C) It regulates bodily functions through horm...
1. What functions does the endocrine system perform?
- Answer:
- A) It directs long-lasting changes such as puberty and pregnancy.
- B) It consists of glands that secrete hormones without using ducts.
- C) It regulates bodily functions through hormone production.
- D) All of the above. ✔️ All of the above.
2. In what ways are the endocrine and nervous systems alike?
- Answer:
- A) Both strive to maintain homeostasis.
- B) They release chemical substances that attach to specific receptors on target cells.
- C) They utilize many of the same chemical messengers.
- D) All of the above. ✔️ All of the above.
3. How do endocrine glands differ from exocrine glands?
- Answer:
- A) The duration of their effects varies.
- B) They differ in how they transport their secretions.
- C) One type has local effects, while the other impacts the entire organism.
- D) All of the above. ✔️ They differ in means of transport.
4. What is a result of G-protein activation?
- Answer:
- A) It activates phospholipase C, leading to the opening of calcium channels.
- B) It activates adenylate cyclase.
- C) It can inhibit adenylate cyclase and other cellular functions.
, - D) All of the above. ✔️ All of the above.
5. How do hormones influence cellular processes?
- Answer:
- A) By altering the transcription rate of specific enzymes.
- B) By promoting the synthesis of particular proteins.
- C) By turning existing enzymes on or off.
- D) All of the above. ✔️ All of the above.
6. What role does the hypothalamus play in the endocrine system?
- Answer:
- A) It is the primary control center of the endocrine system.
- B) It coordinates the functions of both the endocrine and nervous systems.
- C) It secretes hormones that regulate other endocrine glands.
- D) All of the above. ✔️ All of the above.
7. Which part of the pituitary gland releases seven hormones that regulate various other endocrine
organs and tissues?
- Answer:
- A) Posterior pituitary.
- B) Infundibulum.
- C) Adenohypophysis.
- D) Pars nervosa.
- ✔️ Adenohypophysis.
8. Where is antidiuretic hormone (ADH) produced, and where is it released?
- Answer:
- A) Infundibulum.
- B) Anterior pituitary.
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