Multiple Choice Questions: Reproduction

7/25/2019 Multiple Choice Questions: Reproduction

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1. Do the levels of progesterone and FSH increase or remain low during the first few days of the

menstrual cycle?

A. Progesterone and FSH both remain low.

B. Progesterone remains low but FSH increases.

. Progesterone increases but FSH remains low.

D. Progesterone and FSH both increase.

2. How is invitrofertili!ation different from natural fertili!ation in humans?

A. Invitrofertili!ation involves artificial in"ection of sperm into the uterus

B. Invitrofertili!ation only involves one parent

. Invitrofertili!ation happens outside the body

D. Invitrofertili!ation uses stem cells instead of eggs

3. #hat happens during amniocentesis?

A. $he amniotic sac fills up with fluid to prevent damage to the fetus.

B. Amniotic fluid is removed to obtain fetal cells for testing.

. $he amniotic fluid is replaced to avoid re"ection problems with rhesus positive fetuses.

D. Fluid is emptied from the amniotic sac during childbirth.

4. $he levels of hormones vary during the menstrual cycle in women. %ach hormone reaches its

ma&imum level at a different time in the cycle. 'n what se(uence do the hormones reach their

ma&imum level) if the cycle begins at the start of menstruation?

A. *H) progesterone) FSH) estrogen

B. FSH) progesterone) *H) estrogen

. *H) estrogen) FSH) progesterone

D. FSH) estrogen) *H) progesterone

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5. During fertilization in humans, where do the acrosome and the cortical reactions occur

most often?

Acrosome reaction Cortical reaction

A. +agina ,terus

B. ,terus -viduct fallopian tube/

. -viduct fallopian tube/ ,terus

D. -viduct fallopian tube/ -viduct fallopian tube/

6. #hat are the levels of the hormones estrogen) progesterone) *H and FSH during the menstrual

cycle at the time of ovulation?

Estrogen Progesterone LH FSH

A. High *ow High High

B. High High *ow High

. *ow High High *ow

D. *ow *ow *ow *ow

7. After fertili!ation what is the correct order of events?

A. %mbryo secretes H0 1 implantation of embryo in uterine wall 1 stimulates corpus

luteum to grow

B. 'mplantation of embryo in uterine wall 1 stimulates corpus luteum to grow 1 embryo

secretes H0

. 'mplantation of embryo in uterine wall 1 embryo secretes H0 1 stimulates corpus

luteum to grow

D. ontinued secretion of progesterone and estrogen 1 embryo secretes H0 1 stimulates

corpus luteum to grow1 implantation of embryo in uterine wall

8. #hat is the location and function of Sertoli cells?

Location Function

A. Seminiferous tubule Feeding developing sperm

B. Seminiferous tubule Feeding interstitial cells

. %pididymis Feeding developing sperm

D. %pididymis Feeding interstitial cells

9. During oogenesis how many gametes are produced from oneoogonium) the cell that starts to

divide to produce gametes?

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A. 2

B. 3

. 4

D. 5

1. #hich correctly describes the role of the epididymis in semen production?

A. Produces fluid containing fructose to nurture sperm.

B. Finishes maturation of sperm so that they are capable of swimming.

. Produces al6aline fluid with minerals to protect sperm.

D. Produces fluid containing fructose and store mature sperm.

11. $he diagram below shows the human male reproductive system and associated organs.

!

"

#

#hich of the labelled structures indicate the bladder) prostate and urethra?

$la%%er Prostate &ret'ra

A. 7 8 9

B. 8 7 9

. 9 8 7

D. 8 9 7

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12. Human sperm and eggs both consist of single cells. What is a difference between them?

A. Sperm have more chromosomes than eggs.

B. %ggs have more chromosomes than sperm.

. Sperm have a larger surface area to volume ratio than eggs.

D. %ggs have a larger surface area to volume ratio than sperm.

13. #hy is human chorionic gonadotropin H0/ important in early pregnancy?

A. 't is re(uired for e(ual cell divisions in the growing embryo.

B. 't stimulates the ovary to continue production of estrogen and progesterone.

. 't increases the rate of cell division in the embryo.

D. 't promotes growth of the inner cell mass within the embryo.

14. #hat happens to the !ygote immediately after fertili!ation?

A. 't remains in the uterus until placenta develops.

B. 't implants in the wall of the uterus.

. 't divides by meiosis to form an embryo.

D. 't divides by mitosis to form a blastocyst.

1(. #hat is the function of the epididymis?

A. :ucus production

B. Production of nutrient fructose solution

. Storage of sperm during maturation

D. Secretion of al6aline solution

16. #hat is in vitrofertili!ation?

A. Fertili!ation using donated sperm

B. Artificial fertili!ation of an egg inside the body

. Fertili!ation of an egg outside the body

D. loning techni(ue to help couples conceive

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17. #hich of the following outlines the roles of the two hormones o&ytocin and progesterone

during childbirth?

)*+tocin Progesterone

A. causes uterine contraction level rises allowing o&ytocin

production

B. level falls allowing progesterone

production

causes uterine contraction

. stimulates estrogen production level falls allowing o&ytocin

production

D. causes uterine contraction level falls causing o&ytocin

production

18. #hich hormone maintains the corpus luteum in the ovary of a woman at implantation?

A. FSH

B. *H

. H0

D. Progesterone

19. #hat is the origin and role of luteini!ing hormone *H/ in spermatogenesis?

)rigin ,ole

A. 'nterstitial cells of testes triggers first meiotic division

B. Pituitary gland stimulates testosterone production

. Pituitary gland triggers first meiotic division

D. 'nterstitial cells of testes stimulates testosterone production

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20. Women should periodically have a Pap smear test performed to detect cervical cancer.

Which letter indicates the cervix in the diagram below?

A

B

D

21. #hich of the structures labelled in the diagram below provide nourishment for developing

sperm cells?

FromAn Atlas of Histologyby Freeman and Bracegirdle. ;eprinted with permission from Pearson %ducation *td.

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22. How does fertilization differ from copulation?

A. Fertili!ation always produces a !ygote.

B. -nly fertili!ation involves gametes.

. Fertili!ation is a conscious event.

D. Fertili!ation can spread H'+.

23. 'n which of the following structures does meiosis ta6e place?

A. %pididymis

B. Prostate gland

. $estis

D. Seminal vesicle

24. #hich organ secretes FSH follicle


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26. Which labelled structures represent the epididymis and the prostate gland?

E-i%i%+mis Prostate glan%

A. ' '''

B. '' '''

. ' '+

D. '+ '

27. #hich hormones cause the wall of the follicle to develop after ovulation and to secrete more

progesterone?

A. FSH and *H

B. *H and H0

. H0 and o&ytocin

D. -&ytocin and FSH

28. #hich of the following occurs/ at birth in the mother=s body?

'. 'ncrease in o&ytocin

''. 'ncrease in uterine contractions

'''. 'ncrease in levels of progesterone

A. ' only

B. ' and '' only

. '' and ''' only

D. ') '' and '''

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29. #hat part of spermatogenesis in humans ta6es place while spermatids are associated with

Sertoli cells?

A. ell differentiation

B. First division of meiosis

. Second division of meiosis

D. $estosterone production

3. #hich substance is at a higher concentration in the blood of a fetus compared with the blood of

the mother?

A. Antibodies

B. 0lucose

. Amino acids

D. ,rea

31. #hat does o&ytocin control?

A. Brain development of the fetus

B. -nset of ovulation

. Stimulation of uterine contractions

D. 'mplantation of the blastocyst

32. How do the levels of o&ytocin and progesterone change immediately prior to birth?

)*+tocin Progesterone

A. decreases decreases

B. decreases increases

. increases decreases

D. increases increases

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33. How does the amniotic fluid help the fetus during pregnancy?

'. Supplies food to allow the fetus to grow rapidly

''. Supports the fetus so that no part of it is under e&cess pressure

'''. Protects the fetus by acting as a shoc6 absorber

A. ' and '' only

B. ' and ''' only

. '' and ''' only

D. ') '' and '''

34. 'n the menstrual cycle in humans) which hormone causes the wall of the follicle to develop after

ovulation and to secrete more progesterone?

A. %strogen

B. FSH

. *H

D. -&ytocin

3(. #hich of the following are functions of the placenta?

'. 0as e&change

''. Stimulation of uterine contractions

'''. Secretion of progesterone

'+. Secretion of estrogens

A. ' only

B. ''' and '+ only

. ') ''' and '+ only

D. ') '') ''' and '+

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36. What is the outcome for each of the following processes?

S-ermatogenesis )ogenesis

A. 5 gametes 5 gametes

B. 5 gametes 2 gamete and 4 polar bodies

. 3 gametes and 3 polar bodies 3 gametes and 3 polar bodies

D. 2 gamete and 4 polar bodies 5 gametes

37. #hat is the function of Sertoli cells?

A. $hey nourish sperm.

B. $hey produce testosterone.

. $hey nourish interstitial cells.

D. $hey form the basement membrane.

38. #here does human fertili!ation most fre(uently occur?

A. -vary

B. -viduct

. ,terus

D. +agina

39. How can testis tissue be distinguished from ovary tissue) when seen using a light microscope?

A. $estis tissue has a layer of muscle fibres and ovary tissue does not.

B. $estis tissue is cooler than ovary tissue.

. $estis tissue contains tubules and ovary tissue does not.

D. $estis tissue contains pain receptors and ovary tissue does not.

4. #hat happens to the polar bodies formed during oogenesis?

A. $hey cause the acrosome reaction.

B. $hey cause the cortical reaction.

. $hey pull chromosomes to the ends of the cell when the !ygote divides.

D. $hey are not used and brea6 down.

41. #here is human chorionic gonadotrophin H0/ produced?

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A. -vary

B. Anterior pituitary

. %mbryo

D. Posterior pituitary

/otal 1 mar0

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Multiple Choice Questions: Reproduction

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