Ch 31 Terrestrial plant diversity

Question 0

Apical meristem

Answer 0

Point of plant growth

Bud at top of branch

Question 1

Terrestrial Plant Characteristics (4)

Answer 1

Apical meristems
Alternation of generations
Walled spores produced in sporangia
Multicellular gametangia

Question 2

Alternation of generations

Answer 2

2 stages of life cycle (sporophyte and gametophyte)

Question 3

Sporangia

Answer 3

Site of spore production

Question 4

Gametangia

Answer 4

Makes gametes

Question 5

Two multicellular stages

Answer 5

Haploid- gametophyte-n

Diploid- sporophyte-2n

Question 6

Sporocyte

Answer 6

Undergo meiosis to form haploid spores

Question 7

Sporopollenin

Answer 7

Coat spores

Question 8

Gametangia (2)

Answer 8

Site of gamete production

1) archegonia- site of fertilization
2) antheridia- produce and release sperm

Question 9

Is a gametophyte homo or heterosporus?

Answer 9

Homosporus

Question 10

Green Algae facts (4)

Answer 10

Adult phase- haploid n
No alteration
No zygote
99% of life is haploid n

Question 11

Bryophytes examples (3)

Answer 11

Moss, liverworts, hornworts

Question 12

Bryophyte Characteristics (4)

Answer 12

Gametophyte dominant (only plant)
Lack tracheids and vessel elements
Moist habitat/sperm require h2o
Moss and hornworts have stomata

Question 13

Seedless Vascular Plants (ex:fern) (4)

Answer 13

Sporophyte dominant
Sperm require h2o
Tracheids, no vessel elements
2 lineages- pterophyte/lycophytes

Question 14

Fern characteristics-pterophytes (3)

Answer 14

Fronds- not leaves
Fiddlehead a
Sori (crack open and release spores)

Question 15

Horsetails (2)

Answer 15

Contain silica (rich tissues- rigid support)
Hollow stems- o2 transport

Question 16

Lycophytes (oldest)

Answer 16

Asexual reproduction

Ex:scale trees