ANSC 3401 FINAL UPDATED QUESTIONS AND CORRECT ANSWERS

ANSC 3401 FINAL UPDATED QUESTIONS AND
CORRECT ANSWERS

Question:
1. Using the classic definition of a hormone
Answer:
a. hormones are made by ductless glands
b. hormones must enter the blood stream
c. hormones do not initiate chemical reactions
D. ALL OF THE ABOVE

Question:
2. In general, hormones for which organ has the longest half-life
Answer:
placenta

Question:
3. The neck of a bull thickens as he grows, this is an example of
Answer:
secondary sex characteristics

Question:
4. Which of the following are luteolytic
Answer:
a. PGE2
b. LH
c. estrogen
d. all of the above
e. NONE OF THE ABOVE

Question:
5. Which hormone acts like LH in horses but FSH in all other domestic species
Answer:
PMSG

Question:
6. Which hormone is released from the anterior pituitary in response to extremely high levels of estrogen
Answer:
LH

Question:
7. A cow has a dominate follicle and no corpus luteum on her ovary, which of the steroid hormones is she
making

,Answer:
a. estrogen
b. testosterone
c. progesterone
d. ALL OF THE ABOVE

Question:
8. which placental hormone directly controls fetal growth
Answer:
placental lactogen

Question:
9. Testosterone causes
Answer:
Libido

Question:
10. A follice is about to ovulate
Answer:
estrogen levels are high

Question:
11. Which of the following endocrine glands makes relaxin
Answer:
a. placenta
b. uterus
c. gonad
d. ALL OF THE ABOVE

Question:
12. A horse is given eCG, it will
Answer:
develop an additional corpus luteum

Question:
13. Which of the following would be caused by extremely high levels of estrogen
Answer:
the mucus would thin out

Question:
14. Which of the following hormones are made and secreted by the posterior pituitary
Answer:
a. oxytocin
b. LH
c. FSH
d. NONE OF THE ABOVE

, Question:
15. What would be nature's purpose for reproduction
Answer:
survival of the species

Question:
16. To be a neurohormone, a hormone must
Answer:
be made by nerve cells

Question:
17. Which is the proper sequence for steroid hormone production
Answer:
progesterone, androgen, estrogen

Question:
18. Which of the following hormones might represent a risk to a pregnant woman working with
synchronizing cattle
Answer:
a. PGE2
b. LH
c. estrogen
d. NONE OF THE ABOVE

Question:
19. The gonadotropins are produced in response LH and FSH and effect the gonad
Answer:
False

Question:
20. The receptor for steroid hormones is found inside the cell
Answer:
true

Question:
21. hormones can be thought of as one of the chief timers of reproduction
Answer:
true

Question:
22. in farm animals high levels of progesterone from a large follicle both prevents standing heat by having
negative the feedback on the anterior pituitary and hypothalamus
Answer:
false

Question:
23. meletonin helps regulate oxytocin release from the posterior pituitary