reproduction system

Question 1

nectar

Answer 1

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

Question 2

pollen

Answer 2

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

Question 3

stigma

Answer 3

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

Question 4

flowers

Answer 4

the reproductive part of angiosperms containing petals, stamens and carpels. They are often colourful to attract pollinating insects.

Question 5

pollination

Answer 5

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

Question 6

self-pollination

Answer 6

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

Question 7

cross-pollination

Answer 7

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

Question 8

insect-pollinated flowers

Answer 8

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

Question 9

wind-pollinated flowers

Answer 9

flower that receives pollen carried by the wind from another flower

Question 10

anthers

Answer 10

the male part of a flower that makes pollen

Question 11

pollen grains

Answer 11

the male gametes of a flower

Question 12

pollen tube

Answer 12

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

Question 13

ovules

Answer 13

receptacle within an ovary that contains egg cells

Question 14

ovary

Answer 14

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

Question 15

style

Answer 15

the supporting part of a flower that holds the stigma

Question 16

fertilisation

Answer 16

penetration of the ovum by a sperm

Question 17

endosperm

Answer 17

food supply for the embryo plant in a seed

Question 18

germination

Answer 18

first sign of growth from the seed of a plant

Question 19

plumule

Answer 19

small bud at the tip of the embryo plant in a seed

Question 20

radicle

Answer 20

the beginnings of a root making up part of a plant embryo inside a seed

Question 21

asexual reproduction

Answer 21

reproduction that does not involve sex half-cells

Question 22

multiple fission

Answer 22

reproduction method where a single-celled organism divides into more than two cells

Question 23

vegetative propagation

Answer 23

reproduction of plants using parts other than sex cells

Question 24

sexual reproduction

Answer 24

joining together of male and female reproductive cells

Question 25

gametes

Answer 25

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

Question 26

sperm

Answer 26

male reproductive cell. It consists of a head, a middle section and a tail used to swim towards the egg.

Question 27

ova

Answer 27

female gametes or sex cells. Singular = ovum.

Question 28

ejaculation

Answer 28

release of sperm

Question 29

semen

Answer 29

combination of fluid and sperm

Question 30

adolescence

Answer 30

A life stage that you go through physical, mental and emotional

Question 31

puberty

Answer 31

life stage when the sex glands become active and bodily changes occur to enable reproduction

Question 32

pituitary gland

Answer 32

A gland in your brain that releases hormons to start puberty

Question 33

hormones

Answer 33

chemical substances produced by glands and circulated in the blood. Hormones have specific effects in the body.

Question 34

oestragen

Answer 34

one of the major hormones released during puberty in girls

Question 35

menstruation

Answer 35

monthly bleeding, sometimes called ‘periods’. It occurs as the lining of the uterus is released.

Question 36

endometrium

Answer 36

h

Question 37

ovulation

Answer 37

when a women ovum is released out of the ovary

Question 38

testosterone

Answer 38

it is a hormone that is released by a man when it is ready for a male to produce sperm

Question 39

erections

Answer 39

when the penis is filled with blood and when it is hard

Question 40

wet dreams

Answer 40

when you ejaculate in the night when you dreaming

Question 41

fertilisation

Answer 41

penetration of the ovum by a sperm

Question 42

sexual intercourse

Answer 42

when sperm cells are introduced into females

Question 43

zygote

Answer 43

cell formed by the fusion of two gametes; fertilised ovum before it starts to divide into more cells

Question 44

embryo

Answer 44

group of cells formed from the zygote and developing into different body organs

Question 45

womb

Answer 45

the place where the baby sits inside the uterus

Question 46

gestation

Answer 46

time spent by offspring developing in the uterus

Question 47

conception

Answer 47

embedding of a fertilized egg in the uterus wall

Question 48

pregnancy

Answer 48

h

Question 49

placenta

Answer 49

an organ formed in the mother’s womb through which the baby receives food and oxygen from the mother’s blood and the baby’s wastes are removed