Review Questions
4. The land plants are probably descendants of which of these groups?
- green algae
- red algae
- brown algae
- angiosperms
5. Alternation of generations means that plants produce:
- only haploid multicellular organisms
- only diploid multicellular organisms
- only diploid multicellular organisms with single-celled haploid gametes
- both haploid and diploid multicellular organisms
6. Which of the following traits of land plants allows them to grow in height?
- alternation of generations
- waxy cuticle
- tracheids
- sporopollenin
7. How does a haplontic plant population maintain genetic diversity?
- Zygotes are produced by random fusion.
- Gametes are created through meiosis.
- Diploid spores undergo independent assortment during mitosis.
- The zygote undergoes meiosis to generate a haploid sporophyte.
8. What characteristic of Charales would enable them to survive a dry spell?
- sperm with flagella
- phragmoplasts
- sporopollenin
- chlorophyll a
9. Which one of these characteristics is present in land plants and not in Charales?
- alternation of generations
- flagellated sperm
- phragmoplasts
- plasmodesmata
10. A scientist sequences the genome of Chara, red algae, and a tomato plant. What result would support the conclusion that Charophytes should be included in the Plantae kingdom?
- The Chara genome is more similar to the red algae than the tomato plant.
- All three genomes are distinctly different.
- The Chara genome is more similar to the tomato plant genome than the red algae genome.
- The tomato plant genome is distinct from the red algae genome.
11. Which of the following features does not support the inclusion of Charophytes in the Plantae kingdom?
- Charophyte chloroplasts contain chlorophyll a and b.
- Charophyte plant cell walls contain plasmodesmata to allow transfer between cells within multicellular organisms.
- Charophytes do not exhibit growth throughout the entire plant body.
- Charophytes are multicellular organisms that lack vascular tissue.
12. Which of the following structures is not found in bryophytes?
- a cellulose cell wall
- chloroplast
- sporangium
- root
13. Stomata appear in which group of plants?
- Charales
- liverworts
- hornworts
- mosses
14. The chromosome complement in a moss protonema is:
- 1n
- 2n
- 3n
- varies with the size of the protonema
15. Why do mosses grow well in the Arctic tundra?
- They grow better at cold temperatures.
- They do not require moisture.
- They do not have true roots and can grow on hard surfaces.
- There are no herbivores in the tundra.
16. A botanist travels to an area that has experienced a long, severe drought. While examining the bryophytes in the area, they notice that many are in the same life-cycle stage. Which life-cycle stage should be the most common?
- zygote
- gametophyte
- sporophyte
- archegonium
17. Microphylls are characteristic of which types of plants?
- mosses
- liverworts
- club mosses
- ferns
18. A plant in the understory of a forest displays a segmented stem and slender leaves arranged in a whorl. It is probably a ________.
- club moss
- whisk fern
- fern
- horsetail
19. The following structures are found on the underside of fern leaves and contain sporangia:
- sori
- rhizomes
- megaphylls
- microphylls
20. The dominant organism in fern is the ________.
- sperm
- spore
- gamete
- sporophyte
21. What seedless plant is a renewable source of energy?
- club moss
- horsetail
- sphagnum moss
- fern
22. How do mosses contribute to returning nitrogen to the soil?
- Mosses fix nitrogen from the air.
- Mosses harbor cyanobacteria that fix nitrogen.
- Mosses die and return nitrogen to the soil.
- Mosses decompose rocks and release nitrogen.
23. The production of megaphylls by many different species of plants is an example of _____.
- parallel evolution
- analogy
- divergent evolution
- homology