Evolution of Land Plants 2

Question 1

Pine life cycle

Answer 1

look at book

Question 2

Microgametophyte

Answer 2

the male gametophyte that develops form the microspores of heterosporous plants

Question 3

pollen grain

Answer 3

mass of microspores in a seed plant appearing usually as a fine dust

Question 4

megagametophyte

Answer 4

the female gametophyte produced by the megaspore of a plant that produces both microspores and megaspores

Question 5

integuments

Question 6

mature female cone

Question 7

cotyledons

Answer 7

seed leaf within the embryo of a seed

Question 8

pine embryos

Answer 8

sporophyte plant

Question 9

Angiosperm life cycle

Answer 9

look at book

Question 10

pedicel

Question 11

sepals

Question 12

pedals

Question 13

male reproductive parts of an angiosperm

Answer 13

stamen -
anther -
filament -

Question 14

female reproductive parts of an angiosperm

Answer 14

carpel -
ovary -
stigma -
style -
ovules -

Question 15

Basic floral anatomy set up

Answer 15

look in photos

Question 16

seed coat

Answer 16

protective outer layer of a seed

Question 17

cotyledons

Answer 17

seed leaf within the embryo of a seed. help supply the nutrition to a plant embryo it need to germinate.

Question 18

epicotyl

Answer 18

the embryonic shoot above he cotyledons, it will develop into the leaves of the plant

Question 19

hypocotyl

Answer 19

a germinating seedlings stem normally found underneath the seeds leaves but above the root and gradually develops into the stem.

Question 20

radicle

Answer 20

the first organ to appear when a seed germinates

Question 21

endosperm

Answer 21

Tissue that surrounds and nourishes the embryo in the seeds of angiosperms

Question 22

coleoptile

Answer 22

cylindrical organs that ensheath the first leaf and shoot apex in grass seedlings. hey help in the emergence of the first lead and shoot apex, by protecting it during its passage through the soil

Question 23

Monocot seed

Answer 23

a bisected corn seed with a seed coat, endosperm, embryo, single cotyledon and radicle

Question 24

Monocot seedling

Answer 24

a 7-day old corn seedling with a coleoptile and adventitious roots

Question 25

eudicot seedling

Answer 25

7-day old bean seedling with primary and secondary roots, hypotoctyl, cotyledons, and epicotyl, true leaf, apical bud

Question 26

Describe the pollen dispersal of Gymnosperms

Answer 26

- no spore dispersal - no flagellated sperm - yes wind dispersal

Question 27

What is the dominant generation of gymnosperms

Answer 27

sporophyte dominant

Question 28

Homospory

Answer 28

The production by various plants (such as the club mosses and horsetails) of asexual spores of only one kind

Question 29

Heterospory

Answer 29

A situation in which a plant bears two different types of spores. the smaller spore crease the microspore (male gametophyte) and the larger spore is the megaspore (female gametophyte)

Question 30

Pollination syndrome

Answer 30

Suites of flower traits that have evolved in response to natural selection imposed by different pollen vectors either abiotic or biotic

Question 31

Sporangia

Answer 31

A structure within which spores are produced

Question 32

Gametangia

Answer 32

a cell or organ in which gametes are developed

Question 33

Archegonia

Answer 33

female reproductive organ

Question 34

Antheridia

Answer 34

Male sex organ, saclike structure made up of a jacket of sterile cells; encloses many cells and when mature, produces one sperm

Question 35

Mega vs micro prefix

Answer 35

Male MICROspore and Female MEGAspore

Question 36

Gymnosperms

Answer 36

vascular plants with naked seeds, includes the conifers, cycads, Ginkgo sp., Welwitschia sp., and Gnetum sp.

Question 37

Angiosperms

Answer 37

vascular plants with seeds in a protective chamber, includes all flowering plants

Question 38

microsporophylls

Answer 38

a leaf on whoch the microspores are formed in male cones

Question 39

Microsporangia

Answer 39

a structure in the pants male reproductive organ where the development of the pollen takes place - produces microspores

Question 40

Megasporophyll

Answer 40

aka ovuliferous scale

Question 41

megasporangium

Answer 41

a structure in certain spore bearing plants like cones in which megaspores are formed - corresponds to the ovule in seed plants