BIO 30 REPRODUCTIVE SYSTEMS ACTUAL
TEST BANK COMPLETE QUESTIONS AND
ANSWERS GRADED A PLUS SUCCESS GUIDE
●● FSH (male)
Answer: Secreted by anterior pituitary gland
-stimulated seminiferous tubules to produce sperm
●● Inhibin in the male reproductive system
Answer: produced by sertoli cells
- reduces GnRH, FSH, LH production when sperm count is high
●● Testosterone
Answer: produced by leydig cells
-produces primary and secondary reproductive anatomy
●● Feedback loop in male cycle
Answer: 1. hypothalamus releases GnRH
2. Causes Ant. Pit. gland to release FSH, and LH
3. FSH acts on seminiferous tubules (ST), LH on leydig cells
4. ST increases sperm, leydig secrete testosterone to help
,5. Increase sperm count causes release of inhibin which stops the ant.
pit. gland, and hypothalamus, same for high testosterone
●● What is oogenesis?
Answer: development of ova, starts in utero and in ovary
●● process of oogenesis
Answer: 1. In utero:
- oogonium (2n) goes through mitosis and divides into two primary
oocytes (2n) starts meiosis and stops in prophase I at birth
2. At puberty, meiosis continues and divides into the secondary oocyte
(n) and a polar body, stops at ovulation at the beginning of meiosis II
3. If fertilized:
- Meiosis II continues, and creates an ootid (n) and another polar body
- Ootid becomes ovum
●● Oogonium (2n)
Answer: precursor to egg cells
●● primary oocyte
Answer: a cell that divides to form the polar body and the secondary
oocyte
, ●● secondary oocyte
Answer: An oocyte in which the first meiotic division is completed.
●● ootid
Answer: final product of oogenesis; following a period of maturation,
becomes an ovum
●● Polar body
Answer: a small cell containing little cytoplasm that is produced along
with the oocyte and later discarded
●● process of spermatogenesis
Answer: 1. in seminiferous tubule, spermatogonium goes through
mitosis to produce two primary spermatocytes (2n), one becomes the
new spermatogonium
2. Primary spermatocyte (2n) goes through meiosis I to produce
secondary spermatocytes (n)
3. Secondary spermatocytes go through meiosis II to produce
spermatids, that become sperm
●● Sertoli cells
Answer: act to nuture formation of sperm
- regulate nutrients + hormones
- act as immune cell
TEST BANK COMPLETE QUESTIONS AND
ANSWERS GRADED A PLUS SUCCESS GUIDE
●● FSH (male)
Answer: Secreted by anterior pituitary gland
-stimulated seminiferous tubules to produce sperm
●● Inhibin in the male reproductive system
Answer: produced by sertoli cells
- reduces GnRH, FSH, LH production when sperm count is high
●● Testosterone
Answer: produced by leydig cells
-produces primary and secondary reproductive anatomy
●● Feedback loop in male cycle
Answer: 1. hypothalamus releases GnRH
2. Causes Ant. Pit. gland to release FSH, and LH
3. FSH acts on seminiferous tubules (ST), LH on leydig cells
4. ST increases sperm, leydig secrete testosterone to help
,5. Increase sperm count causes release of inhibin which stops the ant.
pit. gland, and hypothalamus, same for high testosterone
●● What is oogenesis?
Answer: development of ova, starts in utero and in ovary
●● process of oogenesis
Answer: 1. In utero:
- oogonium (2n) goes through mitosis and divides into two primary
oocytes (2n) starts meiosis and stops in prophase I at birth
2. At puberty, meiosis continues and divides into the secondary oocyte
(n) and a polar body, stops at ovulation at the beginning of meiosis II
3. If fertilized:
- Meiosis II continues, and creates an ootid (n) and another polar body
- Ootid becomes ovum
●● Oogonium (2n)
Answer: precursor to egg cells
●● primary oocyte
Answer: a cell that divides to form the polar body and the secondary
oocyte
, ●● secondary oocyte
Answer: An oocyte in which the first meiotic division is completed.
●● ootid
Answer: final product of oogenesis; following a period of maturation,
becomes an ovum
●● Polar body
Answer: a small cell containing little cytoplasm that is produced along
with the oocyte and later discarded
●● process of spermatogenesis
Answer: 1. in seminiferous tubule, spermatogonium goes through
mitosis to produce two primary spermatocytes (2n), one becomes the
new spermatogonium
2. Primary spermatocyte (2n) goes through meiosis I to produce
secondary spermatocytes (n)
3. Secondary spermatocytes go through meiosis II to produce
spermatids, that become sperm
●● Sertoli cells
Answer: act to nuture formation of sperm
- regulate nutrients + hormones
- act as immune cell
