Bio Exam 4

In most developing eudicot seeds, the primary source of nutritive material is in the:

Endosperms

Gametophytes also produce female gametangia known as:

Arcogonia

Thrush, a painful yeast infection of the mouth, throat and vagina, is caused by a member of the genus:

Candida

What is the function of the phloem in plants?

Carry sugars

Which of the following is the structural and molecular data that indicate that land plants probably descended from a group of green algae?

Charophytes

Which plants generally have leaves called needles that are long, narrow, tough, and leathery?

Conifers

Why are mosses and liverworts limited in size?

Don't have vascular tissue

What are interesting research plants for studies in genetics because they are polyploids and have multiple sets of chromosomes?

Ferns

As a seed develops from an ovule, the ovule wall enlarges and develops into a:

Food/fruits

How do mosses help prevent soil erosion?

Form dense mats

Lichens reproduce mainly by asexual means, usually by which of the following?

Fragmentation

The sori of most ferns are found on which part of the plant?

Frons

Many seedless plants produce spores of one morphological type, which is referred to as:

Homospory

Which plant has a jointed hollow stem with reduced megaphylls?

Horse tails

A flower that has sepals, petals, and stamens, but lacks carpels, is known as:

Incomplete and imperfect

Seed plants produce ovules, each of which is a megasporangium surrounded by ___________.

Integuments

A key step in the evolution of vascular plants was the ability to produce ____, a strengthening polymer in the walls of cells that provide support and conduction.

Liggin

The gametophyte is the dominant stage in the life cycle for which plant groups?

Liver worts

What do the large female cones of a pine tree contain?

Megasporangia

____ are small leaves with a single vascular strand.

Micro fills

In a fungus, a complex multicellular reproductive structure is called a(n):

Mold

Most conifers have separate male and female reproductive parts on the same tree. This condition is referred to as:

Monoacius

A plant with parallel veins and floral parts in threes or multiples of three would be classified as a:

Monocots

What type of leaf venation do eudicots possess?

Netted venation

What is an example of a monocot?

Onion

What is the function of the sepal of a flowering plant?

Protect bud

The gametophyte generation of ferns is the:

Prothallus

Why are seeds reproductively superior to spores?

Seed has plant inside it

In most fungi, hyphae are divided by cross walls, termed which of the following?

Septa

Meiosis occurs forming spores within which structure?

Sporangium

The endosperm of an angiosperm seed is typically:

Triploid

What is an example of a plant disease caused by a basiodiomycete?

Wheat rust

How is the pollen of pine trees primarily disseminated?

Wind

Which vascular tissue in both gymnosperms and flowering plants is for conducting water and dissolved minerals?

Xylem

The sac fungi are characterized by sexual reproductive structures called:

ascospores

Mushrooms that we eat are technically referred to as:

basidiocarps

The cell walls of fungi are composed of:

glucans, chitin and glycoproteins.

The most diverse, successful, and familiar group of plants today are the

Angiosperm

Some liverworts reproduce asexually by forming tiny balls of tissue called:

Gemmae

Yeasts reproduce asexually by

budding

When bread gets moldy with visible black or blue spots, you are looking at masses of the colored:

spores

Which is the gametophyte form of most liverworts?

Thallus

Puffballs and bracket fungi are most closely related to:

molds

The genus Pinus, by far the largest genus in the conifers, consists of about how many species?

100

Allomyces has an unusual life cycle in that it spends part of its life as a multicellular haploid thallus and part as a multicellular diploid thallus. This life cycle is known as which of the following?

Alternation of generation

Plants that have a distinct haploid stage and diploid stage exhibit:

Alternation of generations

Consuming even a single mushroom of the genus ____ can be fatal.

Amanita

The haploid gametophytes produce male gametangia known as:

Antheridium

Which is an example of a member of phylum Zygomycota?

Black bread mold

Which part of a flowering plant is the immature male gametophyte?

Calyx

Like fungi, chytrid cell walls contain which of the following?

Chitin

The haploid portion of the life cycle is called the _______________ because it gives rise to haploid gametes by mitosis.

Gametophyte

Which generation is significantly reduced in size and entirely dependent on the sporophyte generation?

Gametophytes

Which of the following phyla is unusual because it is composed of a single species?

Gencos

The hypha, a filament that makes up the vegetative body of most fungi, serves which of the following functions?

Nutrient absorption

When a moss spore lands in a suitable spot, it germinates and grows into a filament of cells called a:

Protonema

Each individual gametophyte plant has tiny, hair like absorptive structures known as:

Rhizoids-increases nutrients

Which genus is used to produce beer and wine?

Saccharomyces

After fertilization in angiosperms, what does the ovule develop into?

Seed

Modern botanists think that all plants evolved from a common ancestor, an ancient green algae. What is the best explanation for this hypothesis?

Share many biochemical and bio traits.

What does each male cone's leaflike scales that bear sporangia on the underside consist of?

Sporophylls

When two gametes fuse, the diploid portion of the life cycle is called ________________________.

Sporophyte

The name conifer comes from the reproductive parts of conifers as they have separate male and female reproductive parts in different locations on the same plant. What is the technical name for the structures bearing these reproductive parts?

Stroboly

What is a fungal chemical that shows promise as an anticancer agent because of its ability to inhibit the formation of new blood vessels?

Taxol

How are the sperm of moss transported to the archegonia?

Water and insects

Which vascular tissue is responsible for conducting water and dissolved minerals in plants?

Xylem

Which unicellular fungus is probably in most kitchens?

Yeast

The club fungi typically reproduce by producing:

basidia

How do mycorrhizae benefit plants?

permits the plant to obtain additional moisture and nutrients.

According to the fossil record, the oldest vascular plants are placed in which phylum?

rheophyte