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Sexual Reproduction

Total questions: 64

Worksheet time: 3hrs 12mins

Name
Class
Date
1.

Sexual reproduction results in

a)

Genetically unique offspring

b)

Genetically identical offspring

2.

Which of the following is the female animal gamete?

a)

Sperm

b)

Egg

c)

Pollen

d)

Teste

3.
The cells produced via meiosis are called:
a)

gametes

b)
somatic cells
c)
body cells
d)
skin cells
4.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
5.

If the diploid number of carrots is 18, the haploid number is

a)
18
b)
9
c)
27
d)
36
6.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
7.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
8.
Human eggs and sperm are _____, and each has ____ chromosomes.
a)
diploid, 23
b)
diploid, 46
c)
haploid, 23
d)
haploid, 46
9.
How are your chromosomes inherited?
a)
most of your chromosomes from your mother
b)
most of your chromosomes from your father
c)
a random number of chromosomes from each parent
d)
half your chromosomes from your mother and half from your father.
10.

What process creates reproductive cells used in sexual production?

a)

meiosis

b)

mitosis

c)

cellular respiration

d)

photosynthesis

11.

A zygote is formed by ___________ of a male and female gamete.

a)

fertilisation

b)

division

c)

reduction

d)

addition

12.

Which describes a zygote cell?

a)

diploid

b)

haploid

c)

monoploid

d)

triploid

13.

Each body cell in an earthworm contains 36 chromosomes.  How many chromosomes are in each of its gametes?

a)
54
b)
36
c)
72
d)
18
14.

In sexual reproduction, _______ parents each contribute a sex cell to the new organism.

a)

two

b)

one

c)

three

d)

several

15.

Males produce sex cells called:

a)

spermatozoa

b)

male

c)

egg

d)

sex

16.

When an egg is fertilized by a sperm cell, a new cell, called a _______, is formed.

a)

zygote

b)

eukaryote

c)

prokaryote

d)

gene

17.

The zygote grows through __________

a)

mitosis

b)

meiosis

c)

budding

d)

spores

18.

The menstrual cycle repeats every?

a)

Month

b)

28 days

c)

Week

d)

Year

19.

Ovulation typically occurs on what day of the cycle?

a)

1

b)

14

c)

20

d)

7

20.
What does ovulation mean?
a)
A sperm is released
b)
The lining of the uterus breaks down
c)
An egg is released
d)
Menstruation occurs
21.

In which part of the female reproductive system does a baby develop?

a)

Ovaries

b)

Vagina

c)

Cervix

d)

Uterus

22.

The loss of the uterus lining through the vagina is called

a)

menstruation

b)

period

c)

ovulation

d)

menstruation or period

23.

The egg cell develops in the

a)

vagina

b)

ovary

c)

oviduct

d)

uterus

24.

The lining of the uterus starts to grow thicker after

a)

menstruation

b)

ovulation

25.

The uterus lining is filled with

a)

juice

b)

milky liquid

c)

blood

26.
Fertilization of human eggs usually takes place in the -
a)
ovary.
b)
uterus. 
c)
oviduct. 
d)
cervix.
27.
The diagram shows the female reproductive system. The part labelled B is called  
a)
sperm 
b)
the egg  
c)
the womb  
d)
the ovary 
28.
Ovulation is trigger by a surge in:
a)
FSH
b)
LH
c)
Estrogen
d)
Progesterone
29.

What hormones are released by the pituitary gland?

a)

FSH and LH

b)

FSH, Oestrogen, and Progesterone

c)

Oestrogen and Progesterone

d)

FSH, LH, and Progesterone

30.

Occurs on days 1-5 of the Menstrual Cycle:

a)

Menstrual Phase

b)

Proliferative Phase

c)

Secretory Phase

d)

Luteal Phase

e)

Follicular Phase

31.

What hormone is responsible for thickening the lining of the uterus?

a)

oestrogen

b)

progesterone

c)

FSH & LH

d)

LH only

32.

To prepare the uterus for a possible pregnancy is the purpose of which of the following?

a)

the reproductive system

b)

the endocrine system

c)

the urinary system

d)

the menstrual cycle

33.

During what phase of the menstrual cycle can conception take place?

a)

menstruation

b)

post menstruation

c)

ovulation

d)

premenstruation

34.

What hormone(s) are responsible for the growth and maturation of the ova?

a)

oestrogen

b)

progesterone

c)

FSH & LH

d)

FSH only

35.

What is responsible for creating the hormones oestrogen & progesterone?

a)

The Pituitary gland

b)

The Hypothalamus

c)

The Ovaries

d)

The Fallopian Tubes

36.

The hormone that causes maturation of an egg in the

ovary.

a)

Luteinising hormone

b)

Oestrogen

c)

Progesterone

d)

Follicle stimulating hormone

37.

The hormone that stimulates the release of the egg.

a)

Luteinising hormone

b)

Oestrogen

c)

Progesterone

d)

Follicle stimulating hormone

38.

The hormones that are involved in maintaining the uterus

lining (pick 2):

a)

Luteinising hormone

b)

Oestrogen

c)

Progesterone

d)

Follicle stimulating hormone

39.

What is the sequence of structures through which a mammalian sperm passes after leaving the penis and before fusing with an ovum?

a)

vagina --> urethra --> fallopian tube

b)

ureter --> uterus --> vagina

c)

vagina --> fallopian tube -->ovary

d)

vagina --> uterus --> fallopian tube

40.

On which date is a woman most likely to ovulate if the first day of menstrual loss was 1 February?

a)

5 February

b)

14 February

c)

28 February

d)

1 March

41.

What structure produces the fluid part of semen?

a)

A

b)

B

c)

C

d)

D

42.
a)

A

b)

B

c)

C

d)

D

43.

How are sperm cells different from egg cells in size and in number?

a)

Size - Larger

Number - Fewer

b)

Size - Larger

Number - More

c)

Size - Smaller

Number - Fewer

d)

Size - Smaller

Number - More

44.

Which hormone maintains the uterus lining in the second half of the cycle ?

(a)  

45.

Which hormone repairs the uterus lining in the first half of the cycle ?

(a)  

46.

how is the endometrium adapted to support the blastocyst during implantation and beyond?

a)

increased surface area for implantation

b)

increase in glandular tissue for providing useful secretions

c)

increase in blood vessels to provide nutrients for developing embryo

d)

All of the above

47.

What word is used to describe when the embryo buries into the uterus lining?

a)

fertilisation

b)

implantation

c)

menstruation

d)

ovulation

48.

Which organ allows oxygen and nutrients to get to the foetus?

a)

uterus

b)

small intestine

c)

placenta

d)

lungs

49.

Which of the following move from the foetal blood to the mother's blood?

a)

urea

b)

antibodies

c)

oxygen

50.

Which 2 of the following does the foetus need for aerobic respiration?

a)

oxygen

b)

carbon dioxide

c)

water

d)

glucose

51.

What is the role of the amniotic fluid?

a)

Gives the foetus oxygen

b)

Acts as food for the foetus

c)

Protects the foetus from bumps

d)

To let the mother know when the baby is about to be born

52.

A decrease in which hormone results in menstruation (shedding of the uterus lining)

a)

progesterone

b)

oestrogen

c)

follicle stimulating hormone

d)

luteinising hormone

53.

What is the term to describe the diffusion of oxygen and carbon dioxide across the placenta?

a)

gas exchange

b)

absorption

c)

active transport

d)

ovulation

54.

How does the baby get rid of most of the toxic waste products from its cells?

a)

Its bladder

b)

The placenta

c)

Through its skin

d)

It breathes it out

55.

Sexual reproduction is vital to the propagation of the human race. Which of the following sequences represents the correct order of events in the formation of a human foetus?

a)

Zygote → Blastocyst → Embryo → Fertilisation

b)

Fertilisation → Zygote → Blastocyst → Embryo

c)

Blastocyst → Embryo → Differentiation → Zygote

d)

Fertilisation → Growth → Differentiation → Zygote

56.

In which of the following structures of the female human reproductive system is the blastocyst implanted during normal human development?

a)

ovary

b)

uterus

c)

vagina

d)

amniotic sac

57.

The main function of the placenta is to :

a)

allow direct exchange of blood between the mother and foetus for nutrition.

b)

facilitate gas and nutrient exchange between the foetus and mother.

c)

support the weight of the developing foetus in the uterus.

d)

store gases and nutrients for later delivery to the foetus.

58.

The diagram shows a foetus developing in a uterus. Which structures remove excretory products from the foetus?

a)
P and Q
b)
Q and R
c)
R and S
d)
S and P
59.

The diagram shows a developing foetus. Where does gaseous exchange between mother and foetus occur?

a)
A
b)
B
c)
C
d)
D
60.

What is the name of the internal wall of the uterus?

a)

endometrium

b)

exometrium

c)

testometrium

61.

Which hormones cause the endometrium to grow?

a)

LH and progesterone

b)

FSH and LH

c)

Oestrogen and progesterone

62.

The foetal organ that connects the mother's blood supply and nourishes the foetus while it grows is the:

a)

Stomach

b)

Placenta

c)

Vagina

d)

Uterus

63.

The organ which connects the placenta to the foetus in the uterus is the…

a)

baby cord

b)

gland

c)

umbilical cord

d)

ducts

64.
Which of the following hormones is not secreted by human placenta?
a)

HCG

b)

Oestrogen

c)
Progesterone
d)
LH

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