plant reproduction

Question 1

flowers

Answer 1

reproductive organs of angiosperms

Question 2

carpel

Answer 2

female flower part

Question 3

carpel produces

Answer 3

embryo sacs which contain an egg

Question 4

stamen

Answer 4

male flower parts

Question 5

stamen produce

Answer 5

pollen which contains sperm

Question 6

monoecious flowers contain

Answer 6

both male and female structures

Question 7

dioecious flowers contain

Answer 7

only male or female structures

Question 8

pollination

Answer 8

fertilization of egg by sperm from pollen

Question 9

receptacle

Answer 9

end of stem holding flower

Question 10

sepals

Answer 10

protect flower bud before it opens (looks like a leaf)

Question 11

pedals attract animals to

Answer 11

aid in pollination

Question 12

stamen: ___ holds pollen and ___ holds anther

Answer 12

anther holds pollen and filament holds anther

Question 13

carpel

Answer 13

embryo sac holds eggs

Question 14

where does pollen land?

Answer 14

sticky stigma
tallest part of flower

Question 15

style

Answer 15

connects stigma and ovary

Question 16

gametophyte

Answer 16

gametes with associated cells that assist their function

Question 17

male gametophyte

Answer 17

pollen grain

Question 18

female gametophyte

Answer 18

embryo sac

Question 19

pollen grain formation:
meiosis of spore cells produces..

Answer 19

haploid (n) pollen grains

Question 20

pollen must be moved from…to fertilize eggs

Answer 20

anther to stigma

Question 21

insect pollination: usually pollinated by bees. how?

Answer 21

-they are attracted by sweet smells, bright colors, and UV lights

Question 22

bat pollinations:
-flowers are often…
-flowers smell…
-flowers attract bats with…
-flowers open at….

Answer 22

-brightly colored
-sweet
-nectar
-night

Question 23

birds pollination: flowers are often …

Answer 23

large

Question 24

flowers that birds pollinate often don’t smell sweet, why?

Answer 24

birds have a bad sense of smell

Question 25

wind pollination plant characteristics

Answer 25

don't have colorful flowers or significant sense or nectar

Question 26

wind pollination requires

Answer 26

HUGE amounts of pollen

Question 27

pollen is delivered to

Answer 27

sticky stigma

Question 28

pollen tube cells grain grows...

Answer 28

a tube down the style

Question 29

generative cell moves ...

Answer 29

down pollen tube

Question 30

tube fuses with ___ that contains an egg

Answer 30

ovule

Question 31

double fertilization: generative cell divides into..

Answer 31

2 sperm which enter the ovule from pollen tube

Question 32

sperm fertilize 2 structures:

Answer 32

1 sperm fertilizes egg to form 2n embryo 1 sperm combines with 2 polar nuclei to form 3n endosperm

Question 33

purpose of 3n endosperm

Answer 33

develops into food for the embryo

Question 34

which develops first: endosperm or embryo?

Answer 34

endosperm

Question 35

endosperm development: mitosis results in milky fluid with...

Answer 35

many nuclei

Question 36

endosperm development: cell walls form, solidifying milky substance into

Answer 36

separate ells

Question 37

endosperm stores... for use when embryo germinates

Answer 37

energy

Question 38

embryo divides via

Answer 38

MITOSIS

Question 39

embryo development: begins forming...

Answer 39

cotyledons

Question 40

embryo formation: forms ____ and ____

Answer 40

stem apical meristem root apical meristem

Question 41

seed dormancy: structures surrounding ovule become

Answer 41

protective seed coat

Question 42

seed dormancy: seed becomes dormant with little...

Answer 42

metabolic activity

Question 43

seed dormancy: breaks dormancy when

Answer 43

environmental conditions are right

Question 44

example of condition requirements to break dormancy

Answer 44

Soaking in water; High heat; Freezing; Light; Digestion by animal

Question 45

germination occurs when

Answer 45

certain conditions are met

Question 46

germination: embryo must escape

Answer 46

seed coat

Question 47

imbibition

Answer 47

seed absorbs water: water expands seed and breaks seed coat

Question 48

endosperm is digested to provide

Answer 48

nutrients for growth

Question 49

stem pulls ___ free of seed coat

Answer 49

cotyledons

Question 50

cotyledons are pushed above ground to begin

Answer 50

photosynthesis, generating enough energy for further growth

Question 51

____ inside ___ becomes seeds

Answer 51

ovules; ovary

Question 52

____ surrounding ovules becomes fruit

Answer 52

ovary

Question 53

purpose of fruit

Answer 53

disperse seeds and prevent offspring from competing with parent for nutrients

Question 54

seed dispersal: animals

Answer 54

 Sticks to animals’ body  Attract animal to eat seeds in fruit  Animal forgetting where it hid seeds

Question 55

seed dispersals: wind

Answer 55

 Use tufts to catch wind  Spin to fall slowly  Glide