Bryophytes terms

Exam 4

requirements for plant kingdom

Multicellular embryo retained in female

Spores with sporopollenin

Multicellular sex organs

alternation of generations life cycle

Embryophytes

another name for plants

Antheridum

male sex organ

Archegonium

female sex organ

Venter

where egg is stored in archegonium

Sporic meiosis means

alteration of generations

In sporic meiosis what is the ploidy of the sporotphyte

diploid

In sporic meiosis what is the ploidy of the gametophyte

haploid

In sporic meiosis what is the ploidy of the spores

haploid

In sporic meiosis what is the ploidy of the gametes

haploid

Are bryophytes sporophyte or gametophyte dominant

gametophyte

What type of group are bryophytes

paraphyletic

Requirements of bryophyte sperm

water (motile)

Do bryophytes have vascular tissue?

no

Do bryophytes have roots, stems, or leaves?

no

Thallus

body of a bryophyte, looks like a leaf but not

How do liverworts do asexual reproduction?

in their gammae cups by pinching off of the thallus

Thalloid liverworts structure

have a flat, ribbon-like body (thallus)

Leafy liverworts features

have a stem-like axis with small, leaf-like appendages

Sporophyte of hornworts

horn like structure

Gametophyte of hornworts

thallus

What are the three types of mosses?

granite mosses

peat mosses

true mosses

Operculum

lid like structure on capsule of sporophyte

Capsule

bulb like structure containing spores

Seta

stalk of sporophyte

Sphagnum

peat moss

tundra permafrost

where massive amounts of carbon rich peat moss is stored

peat moss structure

dead cells with thick walls surrounding living cells

peat moss ecology

creates a wetland ecosystems called peatlands (bog) and store lots of carbon

Human use of peat moss

burned for fuel, preserve fossils well