Bio 152 Seedless Plants, Gymnosperms/Angiosperms Quiz #2

Which trait(s) is (are) shared by many modern gymnosperms and angiosperms? 1= pollen transported by wind; 2= lignified xylem; 3= microscopic gametophytes; 4= sterile sporphylls modified to attract pollinators. A. 1, 2 & 3. B. 1 & 3. C. 2, 4 & 5. D. 1, 3 & 5. E. 1 only.

A. 1, 2 & 3.

What adaptations should one expect of the seed coats of angiosperm species whose seeds are dispersed by frugivorous (fruit-eating) animals, as opposed to angiosperm species whose seeds are dispersed by other means? 1= the exterior of the seed coat should have barbs or hooks; 2= the seed coat should contain secondary compounds that irritate the lining of the animal's mouth; 3= the seed coat should be able to withstand low pH's'; 4= the seed coat, upon its complete digestion, should provide vitamins or nutrients to animals; 5= the seed coat should be resistant to the animals' digestive enzymes. A. 3 and 5. B. 2 and 3. C. 4 only. D. 3, 4 & 5. E. 1 and 2.

A. 3 and 5.

Match the scale of ovulate (ovule-bearing) pinecone with the proper sex and generation that most directly produces them: A. Female sporophyte. B. Female gametophyte. C. Male sporophyte. D. Male gametophyte.

A. Female sporophyte.

Which of the following is a land plant that produces flagellated sperm and has a sporophyte-dominated life cycle? A. Fern. B. Liverwort. C. Charophyte. D. Moss. E. Hornwort.

A. Fern.

A biology student hiking in a forest happens on an erect, 15 cm tall plant that bears microphylls and a strobilus at its tallest point. When disturbed, the cone emits a dense cloud of brownish dust. A pocket magnifying glass reveals the dust to be composed of tiny spheres with a high oil content. This student has probably found a(n) A. Lycophyte sporophyte. B. Horsetail gametophyte. C. Bryophyte sporophyte. D. Fern sporophyte. E. Immature pine tree.

A. Lycophyte sporophyte.

Which of the following can be found in gymnosperms? A. Pollen. B. Fruits. C. Triploid endosperm. D. Non-fertile flower parts. E. Carpels.

A. Pollen.

The following are all true about the life cycle of mosses except: A. The growing embryo gives rise to the gametophyte. B. External water is required for fertilization. C. The gametophyte generation is dominant. D. Flagellated sperm are produced. E. Antheridia and archegonia are produced by gametophytes.

A. The growing embryo gives rise to the gametophyte.

A fungal infection damages all peristomes, preventing them from performing their function. Which process will be directly hindered as a result? A. Lengthening of rhizoids. B. Broadcast of spores. C. Ability of sperm to locate eggs. D. Growth of the sporophyte. E. Growth of the protonema.

B. Broadcast of spores.

In which of the following taxa does the mature sporophyte depend completely on the gametophyte for nutrition? A. Horsetail (Equisetum). B. Bryophyte. C. Fern. D. Fern and horsetail. E. Fern, bryophyte and horsetail.

B. Bryophyte.

Match the egg cell in the embryo sac with the proper sex and generation that most directly produces them: A. Male sporophyte. B. Female gametophyte. C. Male gametophyte. D. Female sporophyte.

B. Female gametophyte.

Suppose a moss evolved an efficient conducting system that could transport water and other materials as far as a tree is tall. Four of the following five statements about "trees" of such a species are correct. Select the exception. A. Fertilization would probably be more difficult. B. Females could only produce one archegonium. C. Unless its body parts were strengthened, such a "tree" might flop over. D. Spore dispersal distances might increase, but probably would not decrease. E. Individuals could compete more effectively for access to light.

B. Females could only produce one archegonium.

Angiosperms are the most successful terrestrial plants. Which of these features is unique to them and helps account for their success? A. Dominant gametophytes. B. Fruits enclosing seeds. C. Sperm cells without flagella. D. Embryos enclosed within seed coats. E. Wind pollination.

B. Fruits enclosing seeds.

Bryophytes have all of the following characteristics except: A. Multicellularity. B. Lignified vascular tissue. C. Walled spores in sporangia. D. Specialized cells and tissues. E. A reduced, dependent sporophyte.

B. Lignified vascular tissue.

Which of the following types of plants would not yet have been evolved in the forests that became coal deposits? A. Whisk ferns. B. Pine trees. C. Tree ferns. D. Horsetails. E. Lycophytes.

B. Pine trees.

Choose the adaptation below for life on land that allows protection from predators: A. Tracheids and phloem. B. Secondary compounds. C. Cuticle. D. Alternation of generations.

B. Secondary compounds.

The result of heterospory is: A. the absence of sexuality from both plant generations. B. the existence of male and female gametophytes. C. the existence of male and female sporophytes. D. both the existence of male and female sporophytes and male and female gametophytes.

B. the existence of male and female gametophytes.

Arrange the following structures, which can be found on male pine trees, from the largest structure to the smallest structure (or from the most inclusive to least inclusive). 1=sporophyte; 2= microspores; 3= microsporangia; 4= pollen cone; 5 = pollen nuclei. A. 4,1,2,3,5. B. 1,4,2,3,5. C. 1,4,3,2,5. D. 1,2,3,5,4. E. 4,3,2,5,1.

C. 1,4,3,2,5.

Match the adaptation of a fruit covered with spines or hooks with the most likely means used by the fruit to disperse the seeds contained within the fruit: A. Water currents. B. Air currents. C. Animal skin, fur or feathers. D. Gravity and terrain. E. Animal digestive tract.

C. Animal skin, fur or feathers.

Which of these statements is true of the pine life cycle? A. Double fertilization is a relatively common phenomenon. B. Cones are homologous to the capsules of moss plants. C. Conifer pollen grains contain male gametophytes. D. The pine tree is a gametophyte. E. Male and female gametophytes are in close proximity during gamete synthesis.

C. Conifer pollen grains contain male gametophytes.

Microphylls are characteristic of which types of plants? A. Ferns. B. Liverworts. C. Lycophytes. D. Mosses. E. Hornworts.

C. Lycophytes.

Sporophylls can be found in which of the following? A. Liverworts. B. Mosses. C. Pterophytes. D. Charophytes. E. Hornworts.

C. Pterophytes.

Plant spores are produced directly by: A. Gametes. B. Gametophytes. C. Sporophytes. D. Seeds. E. Gametangia.

C. Sporophytes.

What is true of stamens, sepals, petals, carpels & pinecone scales? A. None are capable of photosynthesis. B. They are female reproductive parts C. They are modified leaves. D. They are found on angiosperms. E. They are found on flowers.

C. They are modified leaves.

Arrange the following structures from largest to smallest, assuming that they belong to two generations of the same angiosperm. 1= ovary; 2= ovule; 3= egg; 4= carpel; 5=embryo sac A. 4,2,1,5,3. B. 4,5,2,1,3. C. 5,1,4,2,3. D. 4,1,2,5,3. E. 5,4,3,1,2.

D. 4,1,2,5,3.

Choose the adaptation below for life on land that allows protection from desiccation: A. Tracheids and phloem. B. Alternation of generations. C. Secondary compounds. D. Cuticle.

D. Cuticle.

If humans had been present to build log structures during the Carboniferous period (they weren't), which plant type(s) would have been suitable sources of logs? A. Lycophytes and bryophytes. B. Charophytes, bryophytes and gymnosperms. C. Whisk ferns and epiphytes. D. Ferns, horsetails and lycophytes. E. Horsetails and bryophytes.

D. Ferns, horsetails and lycophytes.

10. A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: flagellated sperm, xylem with tracheids, separate gametophyte and sporophyte generations with the sporophyte dominant and no seeds. This plant is probably most closely related to: A. Mosses. B. Charophytes. C. Gymnosperms. D. Ferns. E. Flowering plants.

D. Ferns.

Gymnosperms differ from both extinct and extant ferns because they: A. Are woody. B. Have spores. C. Have sporophylls. D. Have pollen. E. Have macrophylls.

D. Have pollen.

Which of the following is true concerning flowering plants? A. The gametophyte generation is what we see when looking at a large plant. B. The gametophyte generation is dominant. C. The sporophyte generation is not photosynthetic. D. The flower includes sporophyte tissue. E. The sporophyte generation consists of relatively few cells within the flower.

D. The flower includes sporophyte tissue.

The main way that pine trees disperse their offspring is by using: A. Flagellated sperm swimming through water. B. Fruits that are eaten by animals. C. Squirrels to bury cones. D. Windblown seeds. E. Spores.

D. Windblown seeds.

The seed coat's most important function is to provide: A. dormancy. B. the means for dispersal. C. a nonstressful environment for the megasporangium. D. desiccation resistance. E. a nutrient supply for the embryo.

D. desiccation resistance.

Plants with a dominant sporophyte are successful on land partly because: A. having no stomata, they lose less water. B. diploid plants experience fewer mutations than do haploid plants. C. eggs and sperm need not be produced. D. their gametophytes are completely enclosed within sporophyte tissue. E. they all disperse by means of seeds.

D. their gametophytes are completely enclosed within sporophyte tissue.

Of the following list, flagellated (swimming) sperm are generally present in which groups? 1=Lycophyta; 2= Bryophyta; 3= Angiosperms; 4= Chlorophyta; 5 = Pterophyta A. 1,3,4,5. B. 2,3,4,5. C. 1,2,3. D. 2,3,5. E. 1,2,4,5.

E. 1,2,4,5.

Assuming that they all belong to the same plant, arrange the following structures from largest to smallest (or from most inclusive to least inclusive). 1= spores; 2=sporophylls; 3= sporophytes; 4= sporangia A. 3,1,4,2. B. 2,4,3,1. C. 3,4,2,1. D. 2,3,4,1. E. 3,2,4,1.

E. 3,2,4,1.

Assuming that they all belong to the same plant, arrange the following structures from largest to smallest: 1= antheridia; 2= gametes; 3= gametophytes; 4= gametangia A. 4,3,1,2. B. 1,4,3,2. C. 3,1,2,4. D. 3,4,2,1. E. 3,4,1,2.

E. 3,4,1,2.

Angiosperm double fertilization is so-called because it features the formation of: A. Two embryos from one egg and two sperm cells. B. One embryo from two eggs fertilized by a single sperm cell. C. One embryo from one egg fertilized by two sperm cells. D. Two embryos from two sperm cells and two eggs. E. One embryo involving one sperm cell and of endosperm involving a second sperm cell.

E. One embryo involving one sperm cell and of endosperm involving a second sperm cell.

Which of the following is not common to all phyla of vascular plants? A. Alternation of generations. B. The addition of lignin to cell walls. C. Xylem and phloem. D. Dominance of the diploid generation. E. The development of seeds.

E. The development of seeds.

Which of the following statements is true of archegonia? A. They are the same as sporangia. B. They are the sites where male gametes are produced. C. They are the ancestral versions of animal gonads. D. They are asexual reproductive structures. E. They may temporarily contain sporophyte embryos.

E. They may temporarily contain sporophyte embryos.