Biology 2: Chapter 20 Quiz

In flowering plants, pollen grains are produced in the

Anther

The _____________ receives pollen

Carpel

Which plants retain the ancestral trait of swimming sperm?

Cycads and ginkgos

In the gametophyte of a fern, the archegonium will eventually contain a(n)

Egg

Which of the following are vascular plants

Ferns

Which feature is not a characteristic of the angiosperms?

Germination of pollen on an ovary

While examining plant fossil material, you find evidence of a heterosporous plant with stomata and archegonia. Why might you hesitate to classify this as a moss?

Heterospory evolved among the vascular plants

_____________ have internal cavities filled with mucilage, and the cavities are often populated by symbiotic cyanobacteria that convert atmospheric nitrogen gas into a form of nitrogen usable by their host plant.

Hornworts

Which group of angiosperms is thought to contain the most primitive living members

Magnoliids

What kind of specialized features do the lycophytes have for capturing light?

Microphylls

Which is a function of the polyploid tissue formed in double fertilization

Nourishing the developing sporophyte

After fertilization, the _____________ of a flower develops into a fruit that protects the seeds and can promote seed dispersal.

Ovary

_____________ are the male gametophytes of seed plants.

Pollen grains

All these algae photosynthesize with chlorophylls a and b, except

Red Algae

A key feature that aids plants in colonizing cool, dry habitats is the

Seed

Which are found in gymnosperms as well as in angiosperms?

Seeds

Which of the following plant adaptations are small closable openings in leaves and stems that are used to regulate gas exchange and water loss?

Stomata

All these features were critical for the evolution of the first land plants except

Vascular Tissue

With regard to the life cycles observed in plants and animals, the two groups share the similarity of

a generation of multicellular diploid individuals.

The first green plants were organisms we now refer to as

algae

Members of the chlorophyte clade

are the sister group to the streptophytes

Both stoneworts and liverworts

contain chlorophylls a and b

The _____________ and calyx can be quite showy and often play roles in attracting animal pollinators to the flower.

corolla

The _____________ serves as storage tissue for starch or lipids, proteins, and other substances that will be needed by the developing embryo.

endosperm

Glaucophytes are an early clade of photosynthetic eukaryotes that

exhibited branched apical growth

In the nonvascular land plants, the conspicuous green structure visible to the naked eye is the _____________

gametophyte

In the alternating generations of a fern, the _____________ is small, delicate, and short-lived, but the _____________ can be very large and can sometimes survive for hundreds of years.

gametophyte; sporophyte

The chloroplast of _____________ is unique in containing a small amount of peptidoglycan between its inner and outer membranes—the same arrangement found in cyanobacteria.

glaucophytes

The _____________ contain chlorophyll b in addition to the chlorophyll a found in all Plantae

green plants

Nonvascular plants are found in all of these places except

in marine areas

A grouping of flowers on the stem of a single plant is a(n)

inflorescence

By the late Silurian, the proliferation of _____________ made the terrestrial environment more hospitable to animals

land plants

In angiosperms, the carpel is produced from modified _______ and it contains the _______.

leaves; ovules

Club mosses have _____________ arranged spirally on their stems

microphylls

Pineapples and figs are examples of ____________

multiple fruit

Liverworts, hornworts, and mosses are found on all seven continents. Their survival in harsh environments is aided by

mycorrhizae

In deep water, where light is dim, algae accumulate large amounts of _____________ and appear red.

phycoerythrin

There is a trend toward _____________ of the gametophyte generation in plant evolution. In the nonvascular land plants, the _____________ is larger, longer-lived, and more self-sufficient than the other generation.

reduction; gametophyte

The _____________ of homosporous plants produce _____________ of gametophyte(s) with both male and female reproductive organs.

spores; a single type

A _____________ produces unicellular _____________ spores as products of meiosis within a sporangium

sporophyte; haploid

Among the streptophytes, the coleochaetophytes and _____________ retain their eggs in the parental organism, as do land plants.

stoneworts

The _____________ are thought to be the closest relatives of the land plants, based largely on similarities of their genes.

stoneworts

A newly discovered algae that retains its eggs should be classified as a

streptophyte

The common ancestor of vascular plants had

tracheids

In nearly all angiosperms, _____________ male gamete(s), contained in one _____________, participate in fertilization.

two; microgametophyte

The sporophytes of heterosporous plants develop _____________ type(s) of _____________.

two; sporangia