Deck 43: Physiology of Reproduction: Gametogenesis and the Female Cycles

Question 1

Human gametes contain _ _ chromosomes; somatic cells contain _ .

A)12; 24
B)23; 46
C)46; 46
D)46; 92

Answer 1

B

Question 2

When spermatogonia divide, are formed.

A)secondary spermatocytes
B)primary spermatocytes
C)functional sperm
D)spermatids

Answer 2

B

Question 3

This hormone stimulates production of the ovarian follicle.

A)progesterone
B)estrogen
C)FSH
D)LH

Answer 3

C

Question 4

Oogonia are found in the ovary .

A)throughout the female's lifetime
B)primarily during fetal development
C)during childhood until puberty
D)during fetal development and childhood until puberty

Question 5

The haploid number of chromosomes is found in .

A)the zygote
B)skeletal muscle cells
C)gametes
D)epithelial cells

Question 6

What is true about gametogenesis in both males and females?

A)Primary spermatocytes and primary oocytes contain the diploid number of chromosomes.
B)Meiosis II is completed in all of the gametes that are produced.
C)The haploid number of chromosomes first appears in the gametes.
D)Gametes are formed in special structures called follicles.

Question 7

Oocytes develop in a structure called a(n).

A)oviduct
B)corpus luteum
C)follicle

Question 8

The follicle produces the hormone , while the corpus luteum produces the hormones and .

A)estrogen; LH and progesterone
B)FSH; LH and progesterone
C)progesterone; estrogen and progesterone
D)estrogen; progesterone and estrogen

Question 9

As an ovarian follicle matures, this is the first follicle that exhibits a large fluid- filled antrum.

A)secondary
B)primordial
C)vesicular
D)primary

Question 10

Meiosis in males yields gamete(s); in females, meiosis yields gamete(s)

A)4; 2
B)4; 1
C)2; 1
D)4; 4

Question 11

These hormones control the uterine cycle.

A)FSH and LH
B)LH and progesterone
C)estrogen and progesterone
D)FSH and estrogen

Question 12

A large surge of this hormone stimulates ovulation.

A)LH
B)progesterone
C)estrogen
D)FSH

Question 13

Primary spermatocytes contain the number of chromosomes; secondary spermatocytes contain the number.

A)diploid, haploid
B)haploid, diploid
C)haploid, haploid
D)diploid, diploid

Question 14

Development of the oocyte and follicular growth occur in the _ of the ovary.

A)germinal epithelium
B)cortex
C)medulla
D)tunica albuginea

Question 15

These cells of the seminiferous tubule nourish the spermatids as they develop into sperm.

A)granulosa cells
B)interstitial cells
C)follicle cells
D)sustentocytes

Question 16

In the male, this hormone stimulates interstitial endocrine cells to produce testosterone.

A)FSH
B)progesterone
C)estrogen
D)LH

Question 17

The final process in production of sperm, yielding cells with small heads and long tails, is called .

A)spermatogenesis
B)spermiogenesis
C)gametogenesis

Question 18

This hormone promotes proliferation of the functional layer of the endometrium.

A)estrogen
B)progesterone
C)LH
D)FSH

Question 19

These cells begin the second mitotic division in spermatogenesis.

A)secondary spermatocytes
B)spermatids
C)primary spermatocytes
D)spermatogonia

Question 20

The first phase of the uterine cycle is the _ phase.

A)proliferative
B)menstrual
C)secretory

Question 21

At the time of ovulation a(n)is extruded from a follicle.

A)secondary oocyte; vesicular follicle
B)ovum(egg); vesicular follicle
C)primary oocyte; secondary follicle
D)secondary oocyte; secondary follicle

Question 22

This hormone promotes the enrichment of the blood supply and secretion of nutrients of the functional layer of the endometrium during the secretory phase of the menstrual cycle.

A)estrogen
B)progesterone
C)LH
D)FSH

Question 23

What physical properties of sperm make them particularly well suited for their job?

A)Their plasma membrane is thickened and tough.
B)They have tails that can propel them forward.
C)They are filled with cytoplasm.
D)Their heads contain many mitochondria.

Question 24

Spermatogonia in the seminiferous tubules are located .

A)closest to the lumen of the tubule
B)closest to the outer edge of the tubule
C)spermatogonia are not found in the seminiferous tubules
D)about half way between outer edge and lumen of the tubule

Question 25

Steps seen in meiosis but not mitosis are .

A)two divisions, the second of which does not involve chromosome replication
B)synapsis, crossover, and two divisions, the second of which does not involve chromosome replication
C)synapsis
D)crossover

Question 26

During the proliferative phase of the uterine cycle, .

A)the blood supply and glandular secretion of nutrients in the endometrium increase
B)the functional layer of the endometrium is shed
C)the functional layer of the endometrium is rebuilt

Question 27

The process of cellular division by which gametes are formed is called _.

A)synapsis
B)meiosis
C)mitosis
D)chiasmata

Question 28

What happens at the end of the uterine cycle if fertilization has not occurred?

A)Ovulation occurs.
B)The corpus luteum is formed.
C)The follicle degenerates.
D)The corpus luteum degenerates.

Question 29

When sperm and egg fuse, a is formed.

A)zygote
B)gamete
C)dyad
D)gonad

Question 30

A primary oocyte residing in a primordial follicle becomes a secondary oocyte .

A)only if fertilized after ovulation
B)in the secondary follicle
C)in the vesicular follicle
D)in the primary follicle