Ch. 30 Vocab

Question 1

layer of sporophyte tissue that contributed to the structure of an ovule of a seed plant

Answer 1

integument

Question 2

a structure that develops within the ovary of a seed plant and contains the female gametophyte

Answer 2

ovule

Question 3

in seed plants, a structure consisting of the male gametophyte enclosed within a pollen wall

Answer 3

pollen grain

Question 4

the transfer of pollen to the part of a seed plant containing the ovules, a process required for fertilization

Answer 4

pollination

Question 5

an extinct seedless vascular plant that may be ancestral to seed plants

Answer 5

progymnosperms

Question 6

member of the largest gymnosperm phylum; most are cone-bearing trees, such as pines and firs

Answer 6

conifers

Question 7

a modified leaf in angiosperms that helps enclose and protect a flower bud before it opens

Answer 7

sepals

Question 8

a modified leaf of a flowering plant; often the colorful parts of a flower that attract insects and pollinators

Answer 8

petals

Question 9

in an angiosperm, the stalk portion of the stamen, the pollen-producing reproductive organ of a flower

Answer 9

filament

Question 10

the ovule-producing reproductive organ of a flower, consisting of the stigma, style, and ovary

Answer 10

carpels

Question 11

the sticky part of a flower’s carpel, which traps pollen grains

Answer 11

stigma

Question 12

the stalk of a flower’s carpel, with the ovary at the base and the stigma at the top

Answer 12

style

Question 13

in flowers, the portion of a carpel in which the egg-containing ovules develop

Answer 13

ovary

Question 14

a mature ovary of a flower

Answer 14

fruit

Question 15

the female gametophyte of angiosperms, formed from the growth and division of the megaspores into a multicellular structure that typically has eight haploid nuclei

Answer 15

embryo sac

Question 16

in angiosperms, the transfer of pollen from an anther of a flower on one plant to the stigma of a flower on another plant of the same species

Answer 16

cross-pollination

Question 17

a pore in the integument of an ovule

Answer 17

micropyle

Question 18

a mechanism of fertilization in angiosperms in which two sperm cells unite with two cells in the female gametophyte to form the zygote and endosperm

Answer 18

double fertilization

Question 19

a seed leaf of an angiosperm embryo

Answer 19

cotyledons

Question 20

in angiosperms, a nutrient-rich tissue formed by the Union of a sperm with two polar nuclei during double fertilization; provides nourishment to the developing embryo in angiosperm seeds

Answer 20

endosperm

Question 21

member of a clade consisting of flowering plants that have one embryonic seed leaf, or cotyledon

Answer 21

monocots

Question 22

member of a clade consisting of the vast majority of flowering plants that have two embryonic seed leaves, or cotyledons

Answer 22

eudicots

Question 23

member of a clade of three early-diverging lineages of flowering plants

Answer 23

basal angiosperms

Question 24

member of the angiosperm clade most closely related to eudicots

Answer 24

magnoliids

Question 25

an adaptation of some terrestrial plants consisting of an embryo packaged along with a store of food within a protective coat

Answer 25

seed