Question 1

The reason that morning-after pills can be taken over the period of one to three days after unprotected sex is

Accepted Answer

A)  the sperm does not reach the egg until the third day after intercourse.
B)  the release of FSH and LH is at a relatively stable concentration until the third day after intercourse.
C)  implantation of the embryo does not take place until around the third day after fertilization.
D)  the placenta will begin production of NCG on the third day after fertilization.
E)  the corpus luteum does not develop until the third day.F) B) and C)
G) C) and E)

Question 2

The role of the acrosome during the fertilization process is to

Accepted Answer

A)  contain enzymes that help a sperm head digest its way into an egg.
B)  increase the sperm's motility.
C)  direct the sperm to the egg.
D)  transport the chromosomes into the egg.
E)  store energy for swimming to the egg.F) A) and E)
G) B) and E)

Question 3

Although estrogen is primarily produced by ovaries,it is also produced by the adrenal glands and in fat tissue.Young female athletes who train strenuously often find that their menstrual cycle shuts down.What would be a reasonable direct cause of this shutdown?

Accepted Answer

A)  The increased need for ATP for the muscle cells deprives ATP for ovaries.
B)  The increased use of ATP for muscles deprives ATP needed by the brain where the hypothalamus and pituitary control the menstrual cycle.
C)  The cycle requires minimal threshold of estrogen and although the ovaries produce their regular levels,the loss of body fat would lower the estrogen level to below the threshold,thus shutting down the menstrual cycle.
D)  Physical trauma to the ovaries themselves would shut down their estrogen production.
E)  Less food would result in less hormone production.F) C) and E)
G) D) and E)

Question 4

The time interval following ejaculation during which stimulation does not cause erection is called

Accepted Answer

A)  the luteal phase.
B)  the proliferative phase.
C)  the secretory phase.
D)  spermatogenesis.
E)  the refractory period.F) A) and E)
G) B) and E)

Question 5

Female birth control pills act by inhibiting the production of

Accepted Answer

A)  ACTH and LH.
B)  TSH and FSH.
C)  ACTH and LTH.
D)  FSH and LH.
E)  estrogen and progesterone.F) A) and B)
G) C) and D)

Question 6

HIV attacks

Accepted Answer

A)  helper T lymphocytes.
B)  Sertoli cells.
C)  B lymphocytes.
D)  interstitial cells.
E)  follicle cells.F) A) and D)
G) A) and E)

Question 7

Which of the following statements is incorrect?

Accepted Answer

A)  The follicles in the ovary produce estrogen.
B)  The corpus luteum produces progesterone.
C)  The placenta can produce both estrogen and progesterone.
D)  LH stimulates the formation of the corpus luteum.
E)  A surge of FSH is believed to promote ovulation.F) A) and B)
G) A) and D)

Question 8

List and describe the function of five of the female reproductive organs.

Accepted Answer

Ovaries: produce the oocyte and sex horm...

Question 9

During a 28-day uterine cycle,ovulation usually occurs on the

Accepted Answer

A)  5th day.
B)  9th day.
C)  14th day.
D)  20th day.
E)  25th day.F) A) and B)
G) A) and C)

Question 10

Which is NOT a physical barrier method of birth control?

Accepted Answer

A)  condom
B)  cervical cap
C)  diaphragm
D)  contraceptive implant
E)  IUDF) C) and E)
G) A) and B)

Question 11

Which of the following hormones is best associated with maturation of the egg?

Accepted Answer

A)  follicle-stimulating hormone
B)  luteinizing hormone
C)  testosterone
D)  human chorionic gonadotropin hormone
E)  progesteroneF) B) and C)
G) A) and D)

Question 12

The refractory period of female orgasm is significantly longer than that of a male.

Accepted Answer

A) True 
 B)False

Question 13

A liver-damaging disease that is more likely to be contracted from sexual contact than HIV is

Accepted Answer

A)  AIDS.
B)  HBV.
C)  chlamydia.
D)  herpes.
E)  gonorrhea.F) B) and D)
G) All of the above B

Question 14

Normal human sperm and eggs are similar in which one of the following respects?

Accepted Answer

A)  They have the same number of chromosomes in their nuclei.
B)  They share a common form of locomotion.
C)  They have the same relative amount of cytoplasm surrounding their nuclei.
D)  Approximately the same number of gametes are produced from both gonads.
E)  Both use meiosis to produce four sperm or four eggs from the parent cell.F) B) and E)
G) A) and C) A

Question 15

The impotency drug Viagra acts by

Accepted Answer

A)  increasing whole body blood pressure.
B)  stimulating erotic mental images.
C)  increasing blood flow to the penis.
D)  decreasing blood flow to the penis.
E)  reducing the amount of seminal fluid.F) A) and C)
G) None of the above

Question 16

Which is a correct comparison of the role(s) of hormones in male and female cycles and sexual development?

Accepted Answer

A)  The same hormones are used by both systems; the names are simply different.
B)  The hypothalamus-pituitary uses a completely separate set of hormones to communicate with ovaries in contrast to testes.
C)  In males,the hypothalamus-pituitary and testes communicate; in females the uterus is an additional actor along with the ovaries and the hypothalamus-pituitary.
D)  In both males and females,there is a monthly cycle of changing hormone levels,although in males,this only results in sperm production.
E)  The hypothalamus controls the male sexual development and keeps sperm production level; the pituitary constantly cycles the female production of eggs.F) A) and B)
G) A) and C)

Question 17

Syphilis is caused by

Accepted Answer

A)  Candida albicans.
B)  Trichomonas vaginalis.
C)  a virus.
D)  Treponema pallidum.
E)  genital warts.F) A) and B)
G) A) and C)

Question 18

Menopause refers to

Accepted Answer

A)  the menstrual phase.
B)  premenstrual phase.
C)  a time when men pause.
D)  cessation of menstruation.
E)  onset of menstruation.F) A) and B)
G) All of the above

Question 19

The energy source for sperm to swim comes from

Accepted Answer

A)  stored fat molecules in the acrosome.
B)  stored sugar molecules in the sperm head.
C)  fructose sugar in the surrounding seminal fluids added by the seminal vesicles.
D)  protein breakdown by mitochondria in the middle of the sperm.
E)  dissolved lipids in the seminal fluids added by the prostate gland.F) All of the above
G) A) and B)

Question 20

What is the function of the Sertoli cells in the male reproductive tract?

Accepted Answer

A)  produce an alkaline fluid added to the semen
B)  produce sperm cells through meiosis
C)  activate the sperm cells so they can swim rapidly
D)  support and regulate the spermatogenic cells
E)  produce a fluid added to the semen just before ejaculationF) D) and E)
G) All of the above D

Exam 21: Reproductive System

The reason that morning-after pills can be taken over the period of one to three days after unprotected sex is

Correct AnswerverifiedShow Answer

The role of the acrosome during the fertilization process is to

Correct AnswerverifiedShow Answer

Although estrogen is primarily produced by ovaries,it is also produced by the adrenal glands and in fat tissue.Young female athletes who train strenuously often find that their menstrual cycle shuts down.What would be a reasonable direct cause of this shutdown?

Correct AnswerverifiedShow Answer

The time interval following ejaculation during which stimulation does not cause erection is called

Correct AnswerverifiedShow Answer

Female birth control pills act by inhibiting the production of

Correct AnswerverifiedShow Answer

HIV attacks

Correct AnswerverifiedShow Answer

Which of the following statements is incorrect?

Correct AnswerverifiedShow Answer

List and describe the function of five of the female reproductive organs.

Correct AnswerverifiedOvaries: produce the oocyte and sex horm...View AnswerShow Answer

During a 28-day uterine cycle,ovulation usually occurs on the

Correct AnswerverifiedShow Answer

Which is NOT a physical barrier method of birth control?

Correct AnswerverifiedShow Answer

Which of the following hormones is best associated with maturation of the egg?

Correct AnswerverifiedShow Answer

The refractory period of female orgasm is significantly longer than that of a male.

Correct AnswerverifiedShow Answer

A liver-damaging disease that is more likely to be contracted from sexual contact than HIV is

Correct AnswerverifiedB

Normal human sperm and eggs are similar in which one of the following respects?

Correct AnswerverifiedA

The impotency drug Viagra acts by

Correct AnswerverifiedShow Answer

Which is a correct comparison of the role(s) of hormones in male and female cycles and sexual development?

Correct AnswerverifiedShow Answer

Syphilis is caused by

Correct AnswerverifiedShow Answer

Menopause refers to

Correct AnswerverifiedShow Answer

The energy source for sperm to swim comes from

Correct AnswerverifiedShow Answer

What is the function of the Sertoli cells in the male reproductive tract?

Correct AnswerverifiedD

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Ovaries: produce the oocyte and sex horm...
View Answer

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B

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A

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D