BSC2011 Chapter 29 qz

B) ferns

A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, he notes the following characteristics: 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) ferns C) gymnosperms D) flowering plants

C) 7

A) 1 B) 3 C) 7 D) 11

D) 3, 1, 2

Assuming that they all belong to the same plant, arrange the following structures from largest to smallest. 1. antheridia 2. gametes 3. gametophytes A) 2, 3, 1 B) 2, 1, 3 C) 3, 2, 1 D) 3, 1, 2

D) sporangia

At some time during their life cycles, bryophytes make _____. A) microphylls B) true roots C) true leaves D) sporangia

B) In both groups, sperm swim from antheridia to archegonia.

How are the bryophytes and seedless vascular plants alike? A) Plants in both groups have vascular tissue. B) In both groups, sperm swim from antheridia to archegonia. C) The dominant generation in both groups is the sporophyte. D) Plants in both groups have true roots, stems, and leaves.

A) Male and female reproductive structures are located on separate plants.

How could you determine if a plant is heterosporous? A) Male and female reproductive structures are located on separate plants. B) It has vascular tissue. C) It has multiple sporangia. D) Its diploid sporophyte produces spores via meiosis.

A) 1 and 5

If the kingdom Plantae is someday expanded to include the charophytes (stoneworts), then the shared derived characteristics of the kingdom will include _____. 1. rings of cellulose-synthesizing complexes 2. chlorophylls a and b 3. alternation of generations 4. cell walls of cellulose 5. ability to synthesize sporopollenin A) 1 and 5 B) 1, 2, and 3 C) 1, 3, and 5 D) 1, 2, 4, and 5

D) spores are unicellular; seeds are not

Spores and seeds have basically the same function—dispersal—but are vastly different because _____. A) spores have a protective outer covering; seeds do not B) spores have an embryo; seeds do not C) spores have stored nutrition; seeds do not D) spores are unicellular; seeds are not

B) open to allow gas exchange and close to decrease water loss

Stomata _____. A) occur in all land plants and define them as a monophyletic group B) open to allow gas exchange and close to decrease water loss C) occur in all land plants and are the same as pores D) open to increase both water absorption and gas exchange

B) green algae

The most direct ancestors of land plants were probably _____. A) kelp (brown alga) that formed large beds near the shorelines B) green algae C) photosynthesizing prokaryotes (cyanobacteria) D) liverworts and mosses

A) waxy cuticle to decrease evaporation from leaves

What evidence do paleobotanists look for that indicates the movement of plants from water to land? A) waxy cuticle to decrease evaporation from leaves B) loss of structures that produce spores C) sporopollenin to inhibit evaporation from leaves D) remnants of chloroplasts from photosynthesizing cells

D) Flagellated sperm swim to the eggs in a water drop.

Which of the following features of how seedless land plants get sperm to egg are the same as for some of their algal ancestors? A) Conjugation tubes are formed between sperm and egg cells. B) Packets of sperm are delivered by wind to the eggs. C) Aquatic invertebrates carry sperm to eggs. D) Flagellated sperm swim to the eggs in a water drop.

B) Male and female bryophytes each produce a type of gametangia.

Which of the following is a true statement about plant reproduction? A) Embryophytes are small plants in an early developmental stage. B) Male and female bryophytes each produce a type of gametangia. C) Eggs and sperm of most land plants swim toward one another. D) Bryophytes are limited to asexual reproduction.

C) megasporangium, megaspore, egg, ovule

Which set contains the most closely related terms? A) megasporangium, megaspore, pollen, ovule B) microsporangium, microspore, egg, ovary C) megasporangium, megaspore, egg, ovule D) microsporangium, microspore, carpel, ovary

B) The ancestors of land plants, green algae, lack the structural support to stand erect in air.

Why have biologists hypothesized that the first land plants had a low, sprawling growth habit? A) They were tied to the water for reproduction and thus needed to remain in close contact with the moist soil. B) The ancestors of land plants, green algae, lack the structural support to stand erect in air. C) Land animals of that period were small and could not pollinate tall plants. D) There was less competition for space so they simply spread out flat.