chapter 30

Question 1

diploid sporophytes produce…

Answer 1

produce spores by meiosis and they grow into haploid gametophytes

Question 2

gametophytes produce…

Answer 2

haploid gametes by mitosis, fertilization creates the next sporophyte

Question 3

angiosperm life cycle is characterized by…

Answer 3

flowers, double fertilization, and fruits

Question 4

receptacle

Answer 4

reproductive shoots of the angiosperm sporophyte attach at the stem

Question 5

carpel

Answer 5

reproductive organ. long style with a stigma on which pollen may land

Question 6

pistil

Answer 6

a single carpel/group of fused carpels

Question 7

stamen

Answer 7

a filament topped by another with pollen sacs that produce pollen

Question 8

complete flowers…

Answer 8

have all four organs

Question 9

incomplete flowers

Answer 9

lack one/more floral organs

Question 10

perfect flowers have

Answer 10

both sexes

Question 11

imperfect flowers

Answer 11

are only male or female

Question 12

inflorescence

Answer 12

clusters of flowers

Question 13

embryo sac

Answer 13

female gametophyte. develops within the ovule

Question 14

megasporangium undergoes mitosis and produces…

Answer 14

megaspore

Question 15

megaspore…

Answer 15

divids producing the female gametophyte

Question 16

female gametophyte have…

Answer 16

seven cells and 8 nuclei

Question 17

pollen grain

Answer 17

two called male gametophyte and the spore wall

Question 18

pollen tube

Answer 18

produced by pollen grain. down into the ovary and discharges two sperm cells near the embryo sac

Question 19

pollination

Answer 19

transfer of pollen from an anther to a stigma

Question 20

wind pollination

Answer 20

produce small inconspicuous flowers that lack nectar or scent and release large amount o pollen

Question 21

double fertilization

Answer 21

result from the discharge of two sperm from the pollen tube into the embryo sac. one sperm fertilizes the egg, the other combines with the polar nuclei giving rise to the triploid food storing endosperm (3n).

Question 22

ovule develops into…

Answer 22

seed

Question 23

ovary develops into…

Answer 23

fruit enclosing the seeds

Question 24

cotyledons

Answer 24

embryonic leaves

Question 25

spicotyl/hypocotyl

Answer 25

embryonic stem

Question 26

radicle

Answer 26

embryonic root

Question 27

ovary of the flower: simple

Answer 27

from single carpel

Question 28

ovary of the flower: aggregate

Answer 28

from a single flower with multiple separate carpels

Question 29

ovary of the flower: multiple

Answer 29

from a group of flowers called an inflorescence

Question 30

from ovary of the flower: accessory fruit

Answer 30

contains other floral parts in addition to ovaries

Question 31

dispersal by water

Answer 31

buoyant fruits like coconut which can survive for long periods at sea

Question 32

dispersed by wind

Answer 32

fruits that have adaptations such as parachute or winglike structures

Question 33

dispersal by animal

Answer 33

fruits that are edible or adapted to attach to an animals skin/fur

Question 34

vegetative reproduction

Answer 34

asexual reproduction

Question 35

fragmentation

Answer 35

separation of a parent plant into parts that develop into whole plants