Reproduction Systems

Question 1

organs that produce sperm and sex hormones

Answer 1

testes

Question 2

skin holding the testes and protecting it

Answer 2

scrotum

Question 3

sacs holding egg cells

Answer 3

follicles

Question 4

tiny tubes joining the ovaries to the uterus

Answer 4

fallopian tubes

Question 5

penetration of the ovum by a sperm

Answer 5

fertilisation

Question 6

joining together of male and female reproductive cells

Answer 6

sexual reproduction

Question 7

reproductive cells (sperm or ova) containing half the genetic information of normal cells

Answer 7

gametes

Question 8

male reproductive cell

Answer 8

sperm

Question 9

female gametes or sex cells

Answer 9

ova

Question 10

cell formed by the fusion of two gametes

Answer 10

zygote

Question 11

reproduction where the eggs are released by the female into water and fertilised by sperm released nearby

Answer 11

external fertilisation

Question 12

reproduction where the egg remains in the female and is fertilised by sperm inserted into the female

Answer 12

internal fertilisation

Question 13

the act of inserting sperm into the female

Answer 13

copulation

Question 14

cell division process that results in new cells with half the number of chromosomes of the original cell

Answer 14

meiosis

Question 15

a new branch of science that involves studying the effect of our experiences on the expression of our genetic information

Answer 15

epigenetics

Question 16

genetic material passed on from both parents

Answer 16

nuclear DNA

Question 17

genetic material from the mitochondria

Answer 17

mitochondrial DNA (mtDNA)

Question 18

release of sperm

Answer 18

ejaculation

Question 19

combination of fluid and sperm

Answer 19

semen

Question 20

twins developed from the same fertilised egg

Answer 20

identical twins

Question 21

twins developed from different fertilised eggs

Answer 21

fraternal twins

Question 22

the reproductive part of angiosperms containing petals, stamens and carpels

Answer 22

flowers

Question 23

the coloured parts of a flower that attract insects

Answer 23

petals

Question 24

parts of a flower, at the base of the petals, that secrete nectar

Answer 24

nectaries

Question 25

fine powder containing the pollen grains (the male sex cells of a plant)

Answer 25

pollen

Question 26

the female part of a flower, at the top of the carpel, that catches the pollen during pollination

Answer 26

stigma

Question 27

transfer of pollen from the stamen (the male part) of a flower to the stigma (the female part) of a flower

Answer 27

pollination

Question 28

transfer of pollen from the flower’s own stamen to its stigma

Answer 28

self-pollination

Question 29

transfer of pollen from stamens of one flower to the stigma of a flower of another plant of the same species

Answer 29

cross-pollination

Question 30

flowers that receive pollen carried on the body parts of insects from other flowers

Answer 30

insect-pollinated flowers

Question 31

flower that receives pollen carried by the wind from another flower

Answer 31

wind-pollinated flowers

Question 32

the male part of a flower that makes pollen

Answer 32

anthers

Question 33

the male gametes of a flower

Answer 33

pollen grains

Question 34

long tube growing from a pollen grain through the style to the ovule

Answer 34

pollen tube

Question 35

the supporting part of a flower that holds the stigma

Answer 35

style

Question 36

receptacle within an ovary that contains egg cells

Answer 36

ovules

Question 37

in plants, the hollow, lower end of the carpel containing the ovules (the female egg cells); in animals, the female organ that produces ova and reproductive hormones

Answer 37

ovary

Question 38

penetration of the ovum by a sperm

Answer 38

fertilisation

Question 39

food supply for the embryo plant in a seed

Answer 39

endosperm

Question 40

product of a fertilised ovule

Answer 40

seed

Question 41

the protective layer around a seed

Answer 41

seed coat

Question 42

ripened ovary of a flower, enclosing seeds

Answer 42

fruit

Question 43

scatter the seeds from plants

Answer 43

disperse