Exam #3 Key Terms Part 2

Question 1

multicellular diploid

Answer 1

sporophyte

Question 2

highly specialized reproductive shoot

Answer 2

floral shoot

Question 3

reproductive cells that can develop into a new haploid organism without fusing with another cell.

Answer 3

spore

Question 4

multicellular haploid

Answer 4

gametophyte

Question 5

type of life cycle, consisting of multicellular forms that give rise to each other in turn

Answer 5

alternation of generations

Question 6

the base of the flower, the part of the stem that is a site of attachment of the floral organs

Answer 6

receptacle

Question 7

the arrangement of sepals, leaves, petals, carpels, or stamens, radiating from a specific point and wrapping around the stalk or stem.

Answer 7

whorl

Question 8

all the sepals combined

Answer 8

calyx

Question 9

green part of the flower that encklose the flower before it opens (think rosebud)

Answer 9

sepal

Question 10

all the petals combined

Answer 10

corolla

Question 11

the brightly colored in most flowers and can aid in attracting pollinators

Answer 11

petal

Question 12

produce microspores that develop into pollen grains containing male gametophytes

Answer 12

stamen

Question 13

the stalk

Answer 13

filament

Question 14

terminal sac where pollen is produced

Answer 14

anther

Question 15

structures of a plant where pollen is produced

Answer 15

pollen sac

Question 16

megasporophylls; produce megaspores that give rise to female gameophytes

Answer 16

carpel

Question 17

carpel that contains one or more ovules

Answer 17

ovary

Question 18

angiosperms and their integuments protect female gametophytes

Answer 18

ovule

Question 19

long slender, neck that leads from the stigma to a structure at the base of the carpel (ovary)

Answer 19

style

Question 20

receives pollen

Answer 20

stigma

Question 21

smaller spores that develop into male gametophytes

Answer 21

microspore

Question 22

what a microspore develops into and consists of a male gametophyte enclosed within the pollen wall.

Answer 22

pollen grain

Question 23

a long cellular protuberance that delivers sperm to the female gametophyte

Answer 23

pollen tube

Question 24

a pore in the integuments of the ovule, and discharges two sperm cells into the female gametophyte

Answer 24

micropyle

Question 25

large reproductive cells (female)

Answer 25

megaspore

Question 26

two female haploid nuclei in the embryo sac of flowers

Answer 26

polar nuclei

Question 27

cell in the venter of the archegonium

Answer 27

central cell

Question 28

three haploid cells in the mature embryonic sac of flowering plants

Answer 28

antipodal cell

Question 29

a female reproductive cell that is used to reproduce offspring

Answer 29

egg cell

Question 30

two specialized cells lying adjacent to the egg cell in the female gametophyte of a flowering plant

Answer 30

synergid

Question 31

which one fertilization event produces a zygote and the other produces a triploid cell, is unique to angiosperms

Answer 31

double fertilization

Question 32

a multicellular, food-storing tissue of the seed

Answer 32

endosperm

Question 33

embryonic root

Answer 33

radicle

Question 34

below where the cotyledons are attached, the embryonic axis is called

Answer 34

hypocotyl

Question 35

portion of the embryonic axis above where the cotyledons are attached and below the first pair of miniature leaves are

Answer 35

epicotyl

Question 36

protects the young shoot

Answer 36

coleoptile

Question 37

protects the young root

Answer 37

coleorhiza