Angiosperms

Front 1

economic importance of angiosperms (5)

Back 1

food, wood, oils and waxes, drugs, medicines

Front 2

Angeios=greek for what?

Back 2

vessel (container)

Front 3

the 4 sets of modified leafs in a flower:

Back 3

sepals, petals, stamens, & carpels.

Front 4

Ovules are encased in a ___. Eventually develop into___.

Back 4

ovary, seeds

Front 5

coevolution

Back 5

when an evolutionary change in one organism leads to an evolutionary change in another organism that interacts with it.

Front 6

seasonal

Back 6

perennial

Front 7

live for a year, then die.

Back 7

annual

Front 8

size of flowers that rely on wind pollination

Back 8

tiny: oak tress, maple trees, corn, grasses

Front 9

flowers that rely on animal pollination

Back 9

showy petals to attract, fruit to reward.

Front 10

The four sets of modified leafs in flowers:

Back 10

1. sepals
2. petals
3. stamens
4. carpels

Front 11

protect floral parts in the bud

Back 11

sepals

Front 12

attract pollinators

Back 12

petals

Front 13

anthers and filaments

Back 13

stamens

Front 14

form the pistil (stigma, style, ovary)

Back 14

carpels

Front 15

flower sporangia

Back 15

ovules

Front 16

leaves modified to hold spores

Back 16

sporophylls

Front 17

leaves modified to hold leaves.
"carp"=fruit

Back 17

carpels

Front 18

fusion of several carpels along the midrib of the modified leaves

Back 18

pistil

Front 19

highly modified sporophylls

Back 19

stamens

Front 20

each holds 4 microsporangia

Back 20

anther

Front 21

becomes multicellular pollen grain

Back 21

microspores

Front 22

male gametophytes

Back 22

pollen grains

Front 23

Microspore mother cell

Back 23

divides by meiosis to form 4 1n microspores

Front 24

biopolymer that protects pollen grains

Back 24

sporopollenin

Front 25

Megasporangia

Back 25

where megaspores develop

Front 26

where are the megasporangia located?

Back 26

inside the ovary, at the base of the pistil

Front 27

foliar theory of the carpel

Back 27

edges of the leaf folded over and fused together to form a protective chamber

Front 28

megasporangium + integument. becomes seed.

Back 28

ovules

Front 29

pericarp

Back 29

ovary wall. develops into fruit

Front 30

megaspore mother cell

Back 30

divides by meiosis to form 4 haploid megaspores

Front 31

the forth megaspore daughter cell, after dividing 3 times by mitosis, becomes a large cell with 8 nuclei called the___

Back 31

embryo sac

Front 32

embryo sac

Back 32

the female gametophyte

Front 33

long tube that grows out of pollen to penetrate the pistil and reach the ovary

Back 33

pollen tube

Front 34

tube nucleus

Back 34

takes care of two sperm nucleus

Front 35

two sperm nucleus

Back 35

1 fertilized middle 2n nucleus to form endosperm

1 fertilised polar 1n nucleus to make seed.

Front 36

seed within. forms nutrition for embryo

Back 36

endosperm

Front 37

double fertilization

Back 37

one sperm fuses with the 2N nucleas to make 3N nucleus, the other fertilizes with egg.

Front 38

develops into the seed coat

Back 38

integument

Front 39

develops into fruit

Back 39

ovary walls

Front 40

the stock for the anther

Back 40

filament

Front 41

the stock for the stigma

Back 41

style

Front 42

the top of the pistil

Back 42

stigma

Front 43

the top of the stamen

Back 43

anther

Front 44

the result when the cross walls between two pairs of microsporangia break down.

Back 44

two pollen sacs

Front 45

made the "folair theory of the carpel"

Back 45

Goethe