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13 The Reproductive System Online Quiz Questions

Use this free practice quiz with 20 questions to review 13 The Reproductive System, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

In people with a testicular reproductive system, the urethra carries both urine and semen, though not at the same time. Is this statement true or false?

  1. A

    True

  2. B

    False

02
Choose one
1 point

Which group of structures adds fluids that combine with sperm to form semen?

  1. A

    The testes and epididymides

  2. B

    The seminal vesicles, prostate, and bulbourethral glands

  3. C

    The scrotum and penis

  4. D

    The ductus deferens and urethra

03
Fill in the blank
1 point

The hypothalamus releases GnRH, which signals the to release FSH and LH.

04
Written response
1 point

Which testicular cell type is stimulated by LH to produce testosterone?

05
Choose all
1 point

Select all statements that correctly describe gamete production.

  1. A

    Meiosis reduces the chromosome number by half.

  2. B

    Oogenesis normally produces four large functional gametes from one primary oocyte.

  3. C

    A primary spermatocyte undergoing meiosis can produce four haploid sperm.

  4. D

    Oogenesis produces one large functional gamete and small polar bodies.

06
Choose one
1 point

After ovulation, where does fertilization usually occur?

  1. A

    The cervix

  2. B

    The vagina

  3. C

    A uterine tube

  4. D

    The endometrium

07
Fill in the blank
1 point

A blastocyst may implant in the uterine lining called the .

08
True or false
1 point

The placenta normally allows exchange between maternal and fetal blood supplies without those supplies directly mixing. Is this statement true or false?

  1. A

    True

  2. B

    False

09
Written response
1 point

How many chromosomes does a diploid human zygote have?

10
Choose all
1 point

Select all statements that correctly describe events associated with fertilization.

  1. A

    Capacitation changes enable sperm to fertilize an oocyte.

  2. B

    Capacitation is the process by which sperm mature and are stored in the epididymis.

  3. C

    The oocyte releases LH to initiate capacitation.

  4. D

    After a sperm enters, the oocyte undergoes changes that help prevent additional sperm from entering.

11
Choose one
1 point

Using standard developmental terminology, what is the developing human called during the seventh week after fertilization?

  1. A

    A fetus

  2. B

    An embryo

  3. C

    A blastocyst

  4. D

    A zygote

12
Written response
1 point

Which structure helps keep the testes at a temperature suitable for sperm production?

13
Choose one
1 point

Which sequence most accurately describes the hormonal trigger for ovulation?

  1. A

    A fall in progesterone causes an FSH surge that triggers ovulation.

  2. B

    A rise in hCG directly triggers the release of an oocyte in every cycle.

  3. C

    A sustained rise in estrogen triggers an LH surge that causes ovulation.

  4. D

    A rise in testosterone triggers a GnRH surge that causes ovulation.

14
Open ended
1 point

If pregnancy begins, explain how a signal from developing embryonic tissue helps maintain the uterine lining early in pregnancy.

15
Written response
1 point

What term describes the changes sperm undergo in the reproductive tract that enable them to fertilize an oocyte?

16
True or false
1 point

True or false: Primary oocytes begin forming before birth and pause during meiosis until development resumes after puberty.

  1. A

    True

  2. B

    False

17
Choose one
1 point

Which sequence correctly describes the route sperm take from the epididymis toward the urethra?

  1. A

    Epididymis → ductus deferens → ejaculatory ducts → urethra

  2. B

    Ductus deferens → epididymis → ejaculatory ducts → urethra

  3. C

    Epididymis → ejaculatory ducts → ductus deferens → urethra

  4. D

    Epididymis → ductus deferens → urethra → ejaculatory ducts

18
Choose one
1 point

Developing ovarian follicles produce a sustained rise in estrogen. Which hormonal event directly triggers ovulation?

  1. A

    Luteinizing hormone

  2. B

    Follicle-stimulating hormone

  3. C

    Progesterone

  4. D

    Human chorionic gonadotropin

19
Choose one
1 point

A sperm fertilizes an oocyte, and their genetic material combines. How many chromosomes does the resulting zygote typically have, and why?

  1. A

    The zygote has 23 chromosomes because meiosis removes one set.

  2. B

    The zygote has 69 chromosomes because fertilization adds two sets to the oocyte.

  3. C

    The zygote has 46 chromosomes because the two haploid sets combine.

  4. D

    The zygote has 92 chromosomes because each gamete duplicates its chromosomes before fusion.

20
Choose one
1 point

Early in pregnancy, which hormone from developing embryonic tissue supports the corpus luteum so it continues secreting progesterone?

  1. A

    FSH directly maintains the endometrium by stimulating the corpus luteum.

  2. B

    hCG supports the corpus luteum, which secretes progesterone.

  3. C

    GnRH from the embryo causes the corpus luteum to secrete estrogen.

  4. D

    LH from the embryo replaces the corpus luteum and directly maintains the endometrium.