Chapter 36 Review Questions

A peak (or rapid increase/surge) in _________________ triggers OVULATION. A) LH B) progesterone C) estrogen D) GnRH E) estradiol

A) LH

FERTILIZATION is directly followed by a process called _____________________, a period of RAPID CELL DIVISION WITHOUT GROWTH, which partitions the cytoplasm of one large cell into many smaller cells. A) cleavage B) gastrulation C) blastulation D) mesenchyme E) ectoderm

A) cleavage

A Sperm cell's _____________________ releases hyrdolytic enzymes which penetrate the protective layer (jelly coat) around the egg. A) sperm-binding receptor B) acrosome C) actin filament D) basal body E) blastocoel

B) acrosome

_________________ CELLS , in seminiferous tubules, respond to LH by secreting testosterone and other androgens, which PROMOTE SPERMATOGENESIS, as well as development of both PRIMARY and SECONDARY SEX CHARACTERISTICS. A) sertoli B) leydig C) follicle D) corpus lutuem E) acrosome

B) leydig

During the FIRST TRIMESTER, the embryo secretes hormones that signal its presence and regulate the mother's reproductive system; one embryonic hormone, ________________________________ acts to maintain secretion of progesterone and estrogens by the corpus luteum through the first few months of pregnancy. A) prolactin B) gonadotropin-releasing hormone (GnRH) C) human chronic gonadotropin (hCG) D) estrogen E) progesterone

C) human chronic gonadotropin (hCG)

A type of asexual reproduction in which an egg can develop into an adult without being fertilized by a sperm cell is : A) budding B) hermaphroditism C) parthogenesis D) oogenesis E) spermatogenesis

C) parthogenesis

An advantage of internal fertilization over external fertilization is that A) Internal fertilization allows animals to reproduce sexually. B) Internal fertilization requires much less expenditure of resources. C) Internal fertilization produces more offspring, ensuring rapid population growth. D) Internal fertilization prevents the drying out of gametes in a dry environment.

D) Internal fertilization prevents the drying out of gametes in a dry environment.

The Production of sperm occurs inside the A) epididymis B) vas deferens C) prostate gland D) seminiferous tubules E) follicle

D) seminiferous tubules

In the ________________ PHASE, after ovulation, the CORPUS LUTEUM (the cavity of the follicle left behind) forms and secretes estradiol (ie..., estrogen) and progesterone that thicken the endometrium (uterine lining). A) follicular B) menstrual C) proliferative D) secretory E) luteal

E) luteal