BIOL 106 EXAM WITH IN-DEPTH QUESTIONS & MODEL
ANSWERS (LATEST UPDATE)
Action Potential: Three phases CORRECT ANSWER>>>>• Depolarization
• Repolarization/hyperpolarization
• Return to resting potential
Asexual reproduction (Budding, Fission, Parthenogenesis) CORRECT
ANSWER>>>>Offspring are genetically identical to parent
- Budding: offspring develops on parent and breaks off
- Fission: animal splits into two or more
- Parthenogenesis: offspring develop from unfertilized egg
Sexual Reproduction: Gametogenesis (Spermatogenesis vs Oogenesis) CORRECT
ANSWER>>>>- Spermatogenenesis: production of sperm (4 sperm cells)
- Oogensis: production of eggs (1 egg)
Sperm cell CORRECT ANSWER>>>>- Head: acrosome (enzymes to clear path to egg),
DNA
- Midpiece: Mitochondria for ATP
- Tail: Flagellum for locomotion
,Egg cell CORRECT ANSWER>>>>- Large
- Chemical signals
- Yolk: nutrients
- Outer protective layer (Vitelline envelope and Zona pellucida in mammals)
Male reproductive system CORRECT ANSWER>>>>Testis
- Seminiferous tubules: sperm production
- Intertitial tissue (Ledydig cells): testosterone production
Epididymis
- Sperm storage
Vas Deferens
- Sperm transport
Seminal vesicles, Prostate, Bulbourethral gland
-Produce seminal fluid
Penis
- corpora cavernosa, corpus spongiosum (erectile)
In spermatogenesis, meiosis produces four sperm cells.
,A. True
B. False CORRECT ANSWER>>>>True
In a sperm cell, the acrosome has
A. enzymes that clear a path to the egg
B. DNA
C. mitochondria CORRECT ANSWER>>>>A. enzymes that clear a path to the egg
Site of sperm production.
Sperm storage.
Testosterone production.
Sperm transport.
Erectile structure in penis CORRECT ANSWER>>>>Seminiferous tubules
Epididymis
Leydig cells
Vas deferens
Corpus cavernosum
Male: HPG Axis CORRECT ANSWER>>>>Sperm development; maintenance of testis
In the HPG axis, LH promotes release of testosterone from the testes.
True
, False CORRECT ANSWER>>>>True
In the HPG axis, testosterone has negative feedback on hormone release
from the hypothalamus and pituitary.
True
False CORRECT ANSWER>>>>True
Human Reproductive System: Female CORRECT ANSWER>>>>Ovary
- Follicles (cells around egg cell, produce hormones)
Fallopian tube
- Transports egg to uterus
- Fimbria: Draw egg into fallopian tube
Uterus
- Myometrium: Layer of smooth muscle
- Endometrium: Implantation of embryo
- Cervix: Opens to birth canal, has mucus plug
Protective layer surrounding egg cell.
Consists of cells surrounding egg cell; produces hormones.
Transports egg from ovary to uterus.
ANSWERS (LATEST UPDATE)
Action Potential: Three phases CORRECT ANSWER>>>>• Depolarization
• Repolarization/hyperpolarization
• Return to resting potential
Asexual reproduction (Budding, Fission, Parthenogenesis) CORRECT
ANSWER>>>>Offspring are genetically identical to parent
- Budding: offspring develops on parent and breaks off
- Fission: animal splits into two or more
- Parthenogenesis: offspring develop from unfertilized egg
Sexual Reproduction: Gametogenesis (Spermatogenesis vs Oogenesis) CORRECT
ANSWER>>>>- Spermatogenenesis: production of sperm (4 sperm cells)
- Oogensis: production of eggs (1 egg)
Sperm cell CORRECT ANSWER>>>>- Head: acrosome (enzymes to clear path to egg),
DNA
- Midpiece: Mitochondria for ATP
- Tail: Flagellum for locomotion
,Egg cell CORRECT ANSWER>>>>- Large
- Chemical signals
- Yolk: nutrients
- Outer protective layer (Vitelline envelope and Zona pellucida in mammals)
Male reproductive system CORRECT ANSWER>>>>Testis
- Seminiferous tubules: sperm production
- Intertitial tissue (Ledydig cells): testosterone production
Epididymis
- Sperm storage
Vas Deferens
- Sperm transport
Seminal vesicles, Prostate, Bulbourethral gland
-Produce seminal fluid
Penis
- corpora cavernosa, corpus spongiosum (erectile)
In spermatogenesis, meiosis produces four sperm cells.
,A. True
B. False CORRECT ANSWER>>>>True
In a sperm cell, the acrosome has
A. enzymes that clear a path to the egg
B. DNA
C. mitochondria CORRECT ANSWER>>>>A. enzymes that clear a path to the egg
Site of sperm production.
Sperm storage.
Testosterone production.
Sperm transport.
Erectile structure in penis CORRECT ANSWER>>>>Seminiferous tubules
Epididymis
Leydig cells
Vas deferens
Corpus cavernosum
Male: HPG Axis CORRECT ANSWER>>>>Sperm development; maintenance of testis
In the HPG axis, LH promotes release of testosterone from the testes.
True
, False CORRECT ANSWER>>>>True
In the HPG axis, testosterone has negative feedback on hormone release
from the hypothalamus and pituitary.
True
False CORRECT ANSWER>>>>True
Human Reproductive System: Female CORRECT ANSWER>>>>Ovary
- Follicles (cells around egg cell, produce hormones)
Fallopian tube
- Transports egg to uterus
- Fimbria: Draw egg into fallopian tube
Uterus
- Myometrium: Layer of smooth muscle
- Endometrium: Implantation of embryo
- Cervix: Opens to birth canal, has mucus plug
Protective layer surrounding egg cell.
Consists of cells surrounding egg cell; produces hormones.
Transports egg from ovary to uterus.
