Here are the answers for the two chapter reviews that were given out yesterday in class. The test is still scheduled for tomorrow, even if we run on a delayed opening schedule. If you have questions, post them as a comment, and I will respond as quickly as I can. Enjoy the snow day!
Chapter 46
Interactive Questions
46.1 a. Reproduce quickly, do not need to find a mate, genetic stability (good for stable environments)
b. Genetic variability (good for changing environments)
46.2 a. courtship behaviors
b. chemical signals
c. environmental signals
46.3 a. vas deferens____l. oviduct
b. erectile tissue______m. eggs/ova
c. urethra______________n. corpus luteum
d. glans________________o. uterine wall
e. prepuce______________p. endometrium
f. scrotum______________q. cervix
g. testis_______________r. vagina
h. epididymis___________s. ovary
i. bulbourehtral gland
j. prostate gland
k. seminal vesicles
46.4 a. Oogenesis has long resting periods
b. Oogenesis creates only one mature gamete
c. Oogenesis is only active during certain periods of life
46.5 a. GnRH
b. FSH
c. LH
d. androgen
e. primary and secondary sexual characteristics
f. negative feedback loops
46.6 a. LH
b. FSH
c. Estrogen
d. Progesterone
e. follicular phase
f. ovulation
g. luteal phase
h. menstrual phase
i. proliferative phase
j. secretory phase
46.7 a. secreted by embryo, maintains corpus luteum secretion of estrogens and progesterone
b. secreted by corpus luteum, negative feedback to hypothalamus and pituitary
c. secreted by fetus and mother's pituitary, stimulates contractions
46.8 a. prevent fertilization - abstinence, condom, diaphragm
b. prevent implantation - IUD, RU-486
c. prevent release of gametes - sterilization, combination pills
Test Your Knowledge
Fill in the Blank
1. budding
2. protandrous
3. parthenogenesis
4. hermaphrodite
5. cloaca
6. estrous
7. progesterone
8. urethra
9. vasocongestion
10. menopause
Multiple Choice
1. e______11. c
2. d______12. a
3. a______13. e
4. c______14. d
5. e______15. b
6. c______16. b
7. e______17. b
8. a______18. d
9. b______19. a
10. b_____20. e
Chapter 47
Interactive Questions
47.1 a. Recognition between proteins on sperm head and receptors in vitelline layer of egg
b. Fast and slow blocks to polyspermy
47.2 a. morula
b. frog blastula
c. animal pole
d. blastocoel
e. vegetal pole
47.3 a. ectoderm
b. mesenchyme cells
c. endoderm
d. archenteron
e. blastopore
f. archenteron
g. ectoderm
h. mesoderm
i. endoderm
j. yolk plug
47.4 a. neural tube
b. neural crest
c. somite
d. archenteron
e. coelom
f. notochord
47.5 a. yolk sac - encloses yolk, develops blood vessels
b. amnion - provides aqueous environment for embryo
c. allantois - holds waste
d. chorion - gas echange
47.6 a. epiblast - three germ layers, amnion, mesoderm, placenta
b. hypoblast - yolk sac
c. trophoblast - chorion, fetal portion of placenta
47.7 sea urchin - unequal polar distribution of cytoplasmic determinants, determined by first horizontal division
47.8 developing limb would be a mirror image with digits on both sides
Test Your Knowledge
1. c_______11. b
2. c_______12. e
3. b_______13. a
4. e_______14. b
5. e_______15. e
6. c_______16. e
7. b_______17. a
8. a_______18. b
9. c_______19. d
10. c______20. d
2 comments:
do we need to know gastrulation and organogenesis in depth? meaning do we need to know about the archenterons, etc.?
@Haarika: You do not need to know organogenesis in detail - be familiar with the neural crest/tube structures. As far as gastrulation, you should definitely know what the archenteron develops into.
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