Chapter 21 The green Machine: Nonvascular Plants

. Which plants can reproduce asexually through fragmentation?

All of the above.

Which of the following plants has a dominant gametophyte generation?

Any true moss.

This picture shows what stage of the life cycle of the moss?

Gametophyte.

How does the thalloid liverwort reproduce asexually?

Gemmae are dislodged by rain.

Identify the structures in this photograph.

Gemmae cups.

______ belong to the phylum Anthocerophyta.

Hornworts

_______ are described as either leafy or thalloid.

Liverworts

What takes place in the capsule of Marchantia spp.?

Meiosis.

Which of the following statements is true?

Mitosis can occur in both haploid and diploid cells.

Historically, which type of plant was important in establishing the transition from water to land and the dominance of the gametophyte generation?

Nonvascular.

In liverworts, what typically transports sperm cells of the antheridiophore to the archegonium single egg?

Rainwater.

Many liverworts develop a symbiotic relationship with fungi, which enter through what part of the liverwort?

Rhizoids.

Cyanobacteria form a symbiotic association with some species of hornworts. What role does the cyanobacteria have in this relationship?

They supply their host with fixed nitrogen.

In the 19th century, peat moss was used to pack abscesses. The antibacterial properties are mainly the result of its _____ pH.

acidic

Adaptations of plants for life on land include _____.

all of the above

Nonvascular plants include which of the following?

all of the above

Plants are a diverse group that can be described as

all of the above

In liverworts, an egg is produced in the _____.

archegonium

Nonvascular plants are generally low to the ground because they_____.

cannot transport nutrients

Germinating meiospores in the life cycle of the Bryophyta become _____.

male and female gametophytes

Hornworts usually live in a_________ environment.

moist and shady

A plant has leaves all the same size, with a thick midrib, that allow water to pass in easily. The plant is most likely a ______.

moss

A liverwort spore reaching a suitable habitat germinates to produce a thin photosynthetic filament of cells, which is known as a __________.

protonema

What structure in the liverwort anchors the thallus?

rhizoids

The body of a thalloid liverwort is called the ____.

thallus

The alternation of generations means that ________.

the spore-producing stage is alternating with the sex cell-producing stage

Moss can reproduce asexually when ______.

the thallus fragments

Because they lack vascular tissue, nonvascular plants are ____.

unable to transport water

Presence or absence of specialized conducting tissue known as____________is a common means of distinguishing members of the plant kingdom.

vascular tissue

Herbaceous plants lack ________.

woody stems