Biology- Chapter 21: Nonvascular Plants without Ratings

a. Seed. b. Seedless. c. Woody. d. Nonvascular. D

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

a. basic b. acidic c. neutral d. 7.2 B

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

a. Fertilization produces the gametophyte generation. b. The gametophyte generation is dominant in vascular plants. c. Mitosis can occur in both haploid and diploid cells. d. The gametophyte starts out as a diploid spore. C

21. Which of the following statements is true?

a. Roots. b. Rhizoids. c. Thallus. d. Vascular tissue. B

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

a. gemmae b. gametophyte c. protonema d. rhizoid C

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

a. lignin b. nonvascular tissue c. vascular tissue d. xylem C

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

a. development of leaves, roots, and stems b. alternation of generations c. evolution of the seed d. all of the above D

25. Adaptations of plants for life on land include _____.

a. liverwort b. moss c. hornwort d. fern B

26. 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 ______.

a. Receptacles. b. Soil. c. Rainwater. d. Protonema. C

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

a. it releases antheridia b. rain releases gemmae c. it produces spores d. the thallus fragments D

28. Moss can reproduce asexually when ______.

a. They supply their host with fixed nitrogen. b. They provide photosynthetic products to the host, as the hornwort does not photosynthesize. c. They help anchor the hornworts. d. They create mucilage. A

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

a. male gametophytes b. female gametophytes c. male and female gametophytes d. sporophytes C

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

a. unable to transport water b. unable to anchor their roots c. able to produce flowers d. able to live in dry areas A

Because they lack vascular tissue, nonvascular plants are ____.

a. green leaves b. woody stems c. seeds d. flowers B

Herbaceous plants lack ________.

a. dry and shady b. moist and shady c. dry and sunny d. wet and sunny B

Hornworts usually live in a ____ environment.

a. Gemmae are dislodged by rain. b. Rhizoids extend into the soil and clone new plants. c. Mitosis along the leaves produces tiny plantlets. d. Elaters disperse spores into the environment. A

How does the thalloid liverwort reproduce asexually?

a. Protonema. b. Archegonia. c. Gemmae cups. d. Rhizoids. C

Identify the structures in this photograph. (Egg bowl looking things)

a. calyptra b. protonema c. archegonium d. antheridium C

In liverworts, an egg is produced in the _____.

a. lack leaves b. cannot reproduce sexually c. lack an epidermis d. cannot transport nutrients D

Nonvascular plants are generally low to the ground because they_____.

a. Liverworts. b. True mosses. c. Hornworts. d. All of the above. D

Nonvascular plants include which of the following?

a. eukaryotic b. multicellular c. autotrophic d. all of the above D

Plants are a diverse group that can be described as ______.

a. the dominant generation is always the haploid b. the spore-producing stage is alternating with the sex cell-producing stage c. plants are reproducing asexually d. plants are transitioning from water to land B

The alternation of generations means that ________.

a. thallus b. rhizoid c. capsule d. calyptra A

The body of a thalloid liverwort is called the ____.

a. Sporophyte. b. Gametophyte. c. Asexual. d. Sexual. B

This picture shows what stage of the life cycle of the moss? (Spiky Leaves)

a. Gemmae. b. Rhizoids. c. Seta. d. Stomata. B

What structure in the liverwort anchors the thallus?

a. Asexual reproduction. b. Meiosis. c. Fertilization. d. Photosynthesis. B

What takes place in the capsule of Marchantia spp.?

a. Any fern. b. Any true moss. c. Any cone-bearing tree. d. Any flowering tree. B

Which of the following plants has a dominant gametophyte generation?

a. Hornworts. b. Mosses. c. Liverworts. d. All of the above. e. A and C. D

Which plants can reproduce asexually through fragmentation?

a. Quillworts b. Liverworts c. Hornworts d. Mosses C

______ belong to the phylum Anthocerophyta.

a. Hornworts b. Quillworts c. Liverworts d. Horsetails C

_______ are described as either leafy or thalloid.