Gymnosperms

Question 1

what kind of plants are they?

Answer 1

vascular woody plants

Question 2

where is the female gametophyte found?

Answer 2

Inside an ovule

Question 3

these plants are referred to as the ?

Answer 3

naked seed plants

Question 4

what is the integument?

Answer 4

the outer layer of an ovule

Question 5

what is the nucellus made up of?

Answer 5

megasporangium with a single megaspore

Question 6

what is the dominant generation?

Answer 6

sporophyte

Question 7

what are spermatophyta?

Answer 7

plants that produce seeds

Question 8

what are pollen grains?

Answer 8

male gametophytes

Question 9

what kind of pollination?

Answer 9

insect pollination

Question 10

what kind of sperm do ginkos have?

Answer 10

non-motile

Question 11

what are cycads?

Answer 11

compound leaves

Question 12

what make up phylum cycadophyta?

Answer 12

cycads

Question 13

what do cycads look like?

Answer 13

trees with fern-like leaves that have no branching

Question 14

what kind of trunks do cycads have?

Answer 14

non branched

Question 15

cycads and ginkos have either tracheids or vessels?

Answer 15

tracheids

Question 16

ginkos and cycads are what that means male and female plants separate

Answer 16

dioecious

Question 17

what pollinates cycads?

Answer 17

beetles

Question 18

woody sporophylls

Answer 18

core

Question 19

non woody sporophylls

Answer 19

strobilus

Question 20

ginko leaves are ….

Answer 20

notched, broad fan shaped; no midrib or prominent veins; dichotomously branched veins

Question 21

what kind of shoots do ginkgos have ?

Answer 21

long shoot, short shoot

Question 22

both cycads and ginkgos have what kind of sperm?

Answer 22

flagellated

Question 23

ginkgo seeds have fleshy coat but…

Answer 23

the seeds are not fruits

Question 24

what are the conifers?

Answer 24

phylum pinophyta

Question 25

what is the largest genus in pinophyta?

Answer 25

pinus

Question 26

what are the leaf characteristics on pinophytes?

Answer 26

needle or scale like ; arranged in clusters

Question 27

what are the leaf characteristics on pinophytes?

Answer 27

needle or scale like ; arranged in clusters; hypodermis

Question 28

what is the hypodermis?

Answer 28

layer under the epidermis that helps keep water in; useful especially in the winter

Question 29

what kind of sperm do pinophytes have?

Answer 29

winged pollen

Question 30

pinophytes are both ___ and ____

Answer 30

monoecious, dioecious

Question 31

the mature ovule in a pinophyte is

Answer 31

a pinecone

Question 32

what are the gnetophyte?

Answer 32

phylum gnetophyta

Question 33

what are characteristics of gnetophyta?

Answer 33

vessels; double fertilization

Question 34

what is double fertilization?

Answer 34

where one sperm fertilizes the egg and the other fuses with another cell that provides food source

Question 35

what are the three genuses

Answer 35

ephedra, gnetum, and welwitschia

Question 36

ephedra are what ?

Answer 36

trees with highly reduced leaves

Question 37

gnetum are what?

Answer 37

tree-like species that grows in tropical regions

Question 38

what are welsitschia?

Answer 38

plants that grow in desert regions with 2 long strap shaped leaves that stay low to the ground