plant reproduction

Question 1

alternation of generations

Answer 1

alternating gametophyte and sporophyte stages

Question 2

bryophyte examples

Answer 2

• liverworts
• hornworts
• mosses

Question 3

bryophyte characteristics

Answer 3

• nonvascular

- gametophyte dom (sporophytes are smaller and present only part of the time)

Question 4

how do spores of bryophytes grow into multicellular gametophytes?

Answer 4

mitosis

Question 5

do bryophytes have vascular tissue?

Answer 5

no

Question 6

where are gametes in bryophytes prod?

Answer 6

gametangia

Question 7

archegonia in bryophytes produce

Answer 7

a single egg

Question 8

antheridia in bryophytes prod

Answer 8

many flagellated sperm (req w to fert)

Question 9

moss sporophytes consist of (2)

Answer 9

• an elongated stale (seta) & a sporangium (capsule)

Question 10

capsule is the site of

Answer 10

meiosis (contains 50 mill haploid spores)

Question 11

two ways ferns are more advanced than bryophytes

Answer 11

• vascular tissue

- sporophyte dom

Question 12

what are 2 functions of sphagnum moss peat bogs (created by dried dead ferns)?

Answer 12

1. preservative acidity

2. important role as carbon reservoirs

Question 13

pteridophytes contain lycophytes and ferns. name one defining characteristic of this clade

Answer 13

vascular tissue (allowed colonization of drier habitats)

Question 14

ferns have (3)

Answer 14

1. large leaves
2. extensive vascular tissue
3. clusters of sporangia (sori)

Question 15

what is a fern gametophyte?

Answer 15

leafy moss

Question 16

is the fern lifecycle gametophyte or sporophyte dom?

Answer 16

sporophyte dom

Question 17

how many types of spores do ferns prod?

Answer 17

one (homosporous)

Question 18

is fern sperm flagellated?

Answer 18

yes (req w for fert)