Seedless Vascular plants

Question 1

the bryophyte plant gametophyte is _____

Answer 1

multicellular and the dominant stage in the life cycle

Question 2

spores make _____

Answer 2

gametophytes

Question 3

homospory

Answer 3

one spore always makes ONE gametophyte that has both egg and sperm

Question 4

homospory gives rise to ______ plants

Answer 4

bisexual

Question 5

example of homospory

Answer 5

ferns (phylum monilophyta)

Question 6

heterospory

Answer 6

separate gametophyte makes different gametes

Question 7

heterospory makes _____ plants

Answer 7

unicellular

Question 8

what are the two different spores in heterospory

Answer 8

1. microspores
2. megaspores

Question 9

microspores give rise to

Answer 9

microgametophyte

Question 10

megaspores give rise to

Answer 10

megagametophyte

Question 11

what gametophyte makes sperm

Answer 11

microgametophyte

Question 12

what gametophyte makes eggs

Answer 12

megagametophyte

Question 13

example of heterospory

Answer 13

selaginella = phylum lycophyta

Question 14

what is the basal lineage in Kingdom Plantae

Answer 14

non-vascular (specifically lycophyta)

Question 15

are seedless vascular plants a clade

Answer 15

NO - they are not monophyletic (share CA with seed plants)

Question 16

what generation is dominant

Answer 16

sporophyte

Question 17

Aglaophyton derived traits

Answer 17

1. dominant sporophyte
2. vascular tissue

Question 18

Aglaophyton ancestral traits

Answer 18

1. lack of proper roots
2. lack of proper leaves
3. dichotomous branching

Question 19

ancient relative of present vascular plants

Answer 19

Aglaophyton

Question 20

what makes up a seed

Answer 20

an embryo and its food supply surrounded by protetcive coat

Question 21

is this a sporophyte or gametophyte

Answer 21

sporophyte

Question 22

the gametophyte in seedless vascular plants is ___________ (micro or macro) and _________ (same or separate) from the sporophyte

Answer 22

macroscopic and separate

Question 23

what is the reason for the gametophyte changing from nonvascular plants

Answer 23

reduction of gametophyte

Question 24

key term that reflects the lifecycle of ferns

Answer 24

prothallus

Question 25

the prothallus is the ______ in ______

Answer 25

gametophyte in ferns

Question 26

where are the archegonia located in fern gametophytes

Answer 26

near the neck

Question 27

where are the antheridium located in fern gametophytes

Answer 27

anywhere else on the gametophyte besides near the neck

Question 28

why do antheridia and archegonia mature at different times on the same plant

Answer 28

to prevent self fertilization

Question 29

is water still needed for the life cycle of ferns

Answer 29

YES

Question 30

organ that increases the surface area of vascular plants

Answer 30

leaves

Question 31

two types of leaves

Answer 31

1. microphylls 2. megaphylls

Question 32

microphylls

Answer 32

leaves with a SINGLE vein

Question 33

megaphylls

Answer 33

leaves with highly BRANCHED vascular system

Question 34

hypothesis for microphyll evolution

Answer 34

1. there is one vascular trace 2. evolved from sporangia

Question 35

hypothesis for megaphyll evolution

Answer 35

1. there are multiple vascular traces 2. evolved from branches

Question 36

example of microphyll

Answer 36

Lycophyta (Selaginella)

Question 37

example of macrophyll

Answer 37

monilophyta

Question 38

_______ are modified leaves with sporangia

Answer 38

sporophylls

Question 39

____ are clusters of sporangia on the underside of sporophylls

Answer 39

sori

Question 40

_______ are CONE-LIKE structures formed from groups of sporophyls

Answer 40

strobili

Question 41

examples of strobili

Answer 41

1. lycophytes 2. horsetails 3. gymnosperms

Question 42

true or false all sporophylls are leaves

Answer 42

true

Question 43

are all leaves sporophylls

Answer 43

no

Question 44

what is clustered under the sporophylls

Answer 44

sporangia called sori

Question 45

what are modified leaves with sporangia called

Answer 45

sporophylls

Question 46

what are cone-like structures that are formed from groups of sporophylls

Answer 46

strobili

Question 47

two clades of seedless vascular plants

Answer 47

1. phylum Lycophyta 2. phylum monilophyta

Question 48

most lycophytes are ______

Answer 48

epiphytes (grow on other plants)

Question 49

lycophytes are _____(micro or megaphylls)

Answer 49

microphylls

Question 50

Selaginella is phylum ______ and ______(hetero or homosporous)

Answer 50

Lycophyta and heterosporous

Question 51

Phylum

Answer 51

Lycophyta (Selaginella)