Biology Unit 4 Quiz 5

sorus

A group of sporangia in ferns.

male flower

A flower that has male parts only. It has stamens but no pistils.

incomplete flower

A flower that lacks one or more of the following parts: pistil, stamen, calyx, or corolla.

female flower

A flower that has female parts only. It has pistils, but no stamens.

False

A flower's sepal is part of the corolla. True False

gametophyte generation

A haploid generation. Produces gametes.

annulus

A row of specialized cells around the sporangium of most ferns. It plays a role in opening the sporangium and releasing spores.

microsporangium

A sporangium that produces microspores.

meiospore

A spore produced by meiosis.

sporangium

A spore-producing cell or structure in protists and plants.

filament

A stalk which supports the anther. It is part of the stamen.

ovule

A structure within the ovary of a flower that contains the female gametophyte. It develops into a seed after fertilization.

between pollination and fertilization

About one year is required in the gymnosperm: to develop the egg to grow the male and female cones between fertilization and germination between pollination and fertilization

heteromorphic alternation of generations

Alternation of generations in which the sporophyte and gametophyte generations have a different size, shape, or appearance.

sporophyte gametophyte

An increasingly intricate relationship exists between the gametophyte and sporophyte generations in vascular plants. As vascular plants live longer, they increase in size and complexity and the ____________________________ generation becomes dominant, while the ____________________________ generation becomes smaller and of shorter duration.

ovule female

Pine cone seeds are produced in the _________________ of the _______________________ cone.

gymnosperms

Plants that produce seeds within a cone are called _________________________________.

anther stigma

Pollination of a flower requires that the pollen produced in the ___________________ be deposited on the _______________________.

homosporous

Producing spores that are all the same in size and shape.

heterosporous

Producing spores that are different in size and shape.

True

Some flowers are able to pollinate themselves. True False

True

Some flowers have a complete set of male and female parts for fertilization. True False

meiosis

Spores produced by the small male cone of a pine tree are produced by ______________________.

stigma

The sticky, terminal end of the pistil where pollen is caught in pollination.

pollen tube

The tube that grows from the pollen grain to penetrate the ovule for fertilization.

heteromorphic

Vascular plants have a _______________________________________ alternation of generations.

produces reproductive organs which produce a zygote

What is the function of the gametophyte generation of the fern plant? produces reproductive organs which produce a zygote produces meiospores which grow into a sporophyte plant grows as a diploid fern produces a new fern asexually

sporic life cycle

A life cycle in which the sporophyte is more than the zygote, and the gametophyte is more than a gamete. The gametophyte and the sporophyte alternate with one another through time.

pollination

Transfer of pollen from male to female cones in gymnosperms, or from anther to stigma in flowering plants.

stigma

A _____________________ is the sticky end of a pistil where pollen is caught.

style

A column-like part of the pistil that supports the stigma of a flower.

ovulate or seed cone

A female cone in gymnosperms. It produces seeds.

complete flower

A flower containing a pistil, stamen, calyx, and corolla.

perfect flower

A flower having both male and female parts.

when the pollen tube grows into the ovule

How does the egg of a flower become fertilized? when the pollen tube grows into the ovule after the pollen grain descends down the style as soon as the pollen reaches the stigma when the seed germinates

male female

In considering the difference between the male and female pine cones, the ______________ is small, short-lived, and nearly unnoticeable on the tree. The ____________________ is the one we recognize as the pine cone.

sporic

Life cycles found in vascular plants are variations of the ______________________ life cycle.

perfect male female

The ____________________ flower has both ______________ stamens and ______________________ pistil parts.

corolla

The collective term for the petals of a flower.

calyx

The collective term for the sepals is __________________

calyx

The collective term for the sepals.

sporophyte generation

The diploid generation. One that produces spores by meiosis.

pistil

The female part of the flower.

seed

The fully developed ovule becomes a _____________

sporophyte vascular gametophyte

The gametophyte and sporophyte generations of ferns differ from one another in that the long-lived ____________________________ has _________________________ tissue. The _________________________________ is small, heart-shaped, and lives only a few weeks.

prothallium

The gametophyte generation of a fern is called the ____________________________________.

prothallium

The gametophyte generation of a fern.

sporophyte

The green leafy plants recognized as ferns are from the ___________________________________ generation of the plant.

sporophyte

The gymnosperm tree or shrub comprises the _____________________________ generation of the plant.

alternation of generations

The idea that the sporophyte generation and the gametophyte generations follow one another in alternating fashion.

stamen

The male organ of plants. It produces pollen.

archegonium

The organ that produces the egg cell in the life cycle of the pine is called the _____________________________________.

False

The petals of a flower have no reproductive function. True False

container for the fertilized egg

The pine cone seed is the: female gametophyte male gametophyte container for the fertilized egg none of the above

ovary stigma style

The pistil of a flower consists of: ovary corolla stigma style stamen anther

False

The pollen produced by a gymnosperm is formed in the female cone. True False

fruit

The ripened ovaries of a flower produce: ___________________