Biology 18

Which part of the figure represents the sporophyte?

A

Which structure is the anther?

A

Which of these is a fungal disease (mycosis)?

ALL OF THESE A) wheat rust B) ringworm C) athlete's foot D) oral thrush

What would you predict as a likely consequence of eradicating all fungi from soil before sowing it with plant seeds?

Although the plants might grow, they would be unlikely to thrive due to the lack of mycorrhizal fungi.

When making bread, you first "proof" the yeast by mixing it with sugar in lukewarm water. Assuming that the yeast are alive, what happens next and why?

Bubbles form as the yeast ferment the sugar and release carbon dioxide.

Which part of the figure represents the gametophyte?

C

Which structure is the style?

D

You discover a green, filamentous multicellular eukaryote growing at the edge of a pond. How could you determine if the organism is a green alga or a plant?

Determine if the organism protects and nourishes its embryos.

Which structure is the ovary?

E

Which structure is a characteristic found onlyin angiosperms?

FLOWER

Which statement does not apply to all fungi?

Fungi produce gametes that are motile.

Which statement about the plant alternation-of-generations life cycle is incorrect?

Gametes are only produced by meiosis.

If you are studying a eukaryotic, multicellular, non-photosynthetic organism, what piece of information would be most useful in determining if it is a fungus or an animal?

It has cell walls.

How is the mycelium a valuable adaptation for a fungus?

It provides a large surface area for the absorption of nutrients and moisture.

Why are green algae placed in the kingdomProtista, while plants are given their own kingdom?

Plants enclose and protect the embryo within the female plant, while green algae do not.

________ is the vascular tissue that conducts water and minerals from a plant's roots to its leaves.

Xylem

While walking in the woods, you come across some low-growing plants clustered at the base of a tree. You collect one as a specimen for biology class. Upon examination in the lab, you find that the leaf-, stem-, and root-like structures contain no vascular tissue. The plant is

a bryophyte

Which of the following groups provides protection and nourishment to the embryo?

all plants

Which group of organisms is attacked by Batrachochytrium dendrobatidis, a parasiticchytrid that causes a cutaneous infection called chytridiomycosis?

amphibians

Some scientists estimate that over half of the world's rainforest has already been lost, mostly due to human activities. What would you predict as a consequence of the massive loss of plant life?

an increase in atmospheric carbon dioxide

Apples, oranges, peanuts, and rice grains are produced by

angiosperms

Which of the following have microscopically small gametophytes?

both angiosperms and gymnosperms

In the fern life cycle, which of these is haploid?

both gametophyte and gametes

Which of these is mismatched?

calyx - stigma

Which of these is mismatched?

charophyte - hypha

The closest living relatives of land plants are

charophytes

A unicellular, eukaryotic organism has flagella and cell walls of chitin. What is it?

chytrid

In ferns, the dominant generation is the

diploid sporophyte

Which of these is mismatched?

embryo - male gametophyte

Which of these is found in the moss life cycle?

flagellated sperm

If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is a(n)

gymnosperm

Conifers such as pine trees are classified as

gymnosperms

Which of these would be best able to reproduce during a period with little to no rainfall?

gymnosperms

Which of these is mismatched?

gymnosperms - fruits

Beekeepers and scientists are very troubled by a recent decline in bee populations around the world. What would you predict as a likely consequence of the widespread disappearance of bees?

loss of crop productivity

A plant has vascular tissue and true roots, stems, and leaves, but it does not produce seeds. The plant has microphylls and bears its sporangia in strobili. This plant is a

lycophyte.

Which of these was the first to have well-developed vascular tissue?

lycophytes

Pollen grains are

male gametophytes

Which structures are found in both ferns and gymnosperms?

megaphylls and vascular tissue

The gametophyte is the dominant generation in

mosses

Which of these would you expect to thrive in areas with abundant moisture?

mosses, ferns, and lycophytes

Which of these has a diploid stage in their life cycle?

mosses, ferns, gymnosperms, and angiosperms

The body of a typical fungus is termed a(n)

mycelium

Many garden supply stores sell root dips used to treat plants that are being transplanted. Such dips are advertised as containing spores. What kind of spores should these dips contain?

mycorrhizal fungi

By definition, a fruit is derived from the

ovary

Which feature is believed to have been the first step in the evolution of land plants from the green algae?

protection of the embryo

Which fungal disease results in a loss of 1/3 of the world's rice crop every year?

rice blast disease

Most fungi in the environment function as

saprotrophs

In black bread mold, spores are produced in structures called

sporangia

Part Z is

stored food

In a fungal life cycle, which of the following is/are diploid?

the zygote only

Which statement about chytrids is incorrect?

they are obligate parasites

What is the function of the fungal fruiting body?

to produce spores

Endosperm is a ________ tissue.

triploid (3n)

Which feature possessed by most land plants is missing in mosses, which grow low to the ground in damp, shaded areas?

vascular tissue, so they must grow along the ground in damp areas to supply water to the cells

The fermentation capabilities of ________ are used to produce bread and alcoholic beverages.

yeasts