ANSC 333 FINAL EXAM STUDY GUIDE UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

ANSC 333 FINAL EXAM STUDY GUIDE UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. What gland produces melatonin?
Answer:
Pineal Gland

Question:
2. What is Testosterone derived from?
Answer:
Cholesterol

Question:
3. When does the corpus luteum form?
Answer:
Metestrus (after ovulation, while awaiting fertilization)

Question:
4. When does luteolysis occur?
Answer:
Diestrus (bc it's sad bc it wasn't fertilized)

Question:
5. What does an LH surge cause?
Answer:
ovulation

Question:
6. What causes an LH surge?
Answer:
GnRH Surge

Question:
7. Granulosa Cells
Answer:
Big cells

Question:
8. Theca Cells
Answer:
Small Cells

Question:
9. What stimulates growth of the Wolffian/Mesonephric duct?

,Answer:
A and C

Question:
10. What is Fraley's definition of a hormone?
Answer:
A substance produced by one or more glands that travels through the blood to affect another molecule.

Question:
11. _______ signaling involves ligands on the surface of one cell interacting with receptors on the surface
of a neighboring cell.
Answer:
Juxtacrine

Question:
12. Glycoprotein hormones are characterized by which of the following features?
Answer:
A common alpha-subunit and a unique beta-subunit linked by non-covalent bonds and glycosylation

Question:
13. Which hormone(s) is an example of a steroid?
Answer:
Estradiol

Question:
14. Biogenic amines are derived from which types of molecules?
Answer:
Amino acids

Question:
15. When estradiol levels rise, GnRH secretion increases instead of being suppressed. Which mechanism
best explains this?
Answer:
Positive feedback at the hypothalamus

Question:
16. Which of the following best explains why testosterone's effects vary between reproductive tract
development and muscle growth?
Answer:
Receptor abundance and tissue-specific co-regulators modulate gene transcription

Question:
17. When sucking triggers oxytocin release, which type of reflex and hormone action are involved?
Answer:
Neuroendocrine reflex with peptide receptors on the cell surface

, Question:
18. How can estradiol elicit both positive and negative feedback on GnRH secretion?
Answer:
All of the above

Question:
19. A hormone has a short half-life and strong but brief effects. Which pattern best matches it?
Answer:
Burst-like secretion with kidney clearance

Question:
20. Which structure is both an endocrine gland and the site of gamete production in males?
Answer:
Testicle

Question:
21. What is the primary function of the mammalian epididymis?
Answer:
Maturation and storage of sperm

Question:
22. _____ is an accessory sex gland that contributes most to the fluid volume of semen and can produce a
gel fraction in some animals.
Answer:
Seminal vesicles

Question:
23. In birds, erection of the phallus occurs through which mechanism?
Answer:
Lymph-like transudate filling vascular and phallic bodies

Question:
24. This type of penis is characterized by limited erectile tissues, large amounts of connective tissue, and
an S-shaped bend maintained by retractor penis muscle.
Answer:
Fibroelastic penis with sigmoid flexure

Question:
25. Which of the following are types of post-ovulation structures?
Answer:
All of the above

Question:
26. The oviduct contains what two substances?
Answer:
Ampulla and Isthmus