PCC BIO PRACTICAL 5

Coniferophyta Ovule

cotain the megasporangium, are on upper surface of scales

Coniferophyta Megasporocytes

diploid will produce haploid megaspores,

anthopyhta caylx

e sepals of a flower, typically forming a whorl that encloses the petals and forms a protective layer around a flower in bud.

anthophyta petals

each of the segments of the corolla of a flower, which are modified leaves and are typically colored.

anthophyta egg cell

one of the three nucluli near the micropyle that will eventulaly be fertilized.

anther sacs

microsporangia of the anthophyta

Mature pollen grains

microspores undergo mitosis to produce______ haploid

embyro sac

multinucleated: all that remains of of the female gametophyte in angiosperms

endosperm nuclues

one sperm fuses with the two polar nuclie to form a 3n____________ whcih will develop into a rich nutritive material for support and develoment of the embryo

anthophyta micropyle

opening at end of megasporocyte Letter D

Coniferophyta male gametophyte

pollen grains in the coniferophyta

Animal pollination

pollination mediated by specific agents insects, birds and bats. Thser are attrachted to the flower with its rewards of nectar and pollen. increasing the chance of cross fertilization among distant plants and there for increased genetic variation.

stigma

(in a flower) the part of a pistil that receives the pollen during pollination

Anthophyta ovule

, the _________ is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: The integument(s) forming its outer layer(s), the nucellus (or remnant of the megasporangium), and female gametophyte (formed from haploid megaspore) in its center.

nut

A true nut, botanically speaking, is a hard-shelled pod that contains both the fruit and seed of the plant, where the fruit does not open to release the seed to the world.

coniferphyta pollen tube

A tube that extends from the germinating pollen into one of the archegonia to deliver a sperm nucleus

aggregate fruits

An aggregate fruit or etaerio (/ɛˈtɪərɪoʊ/) is a fruit that develops from the merger of several ovaries that were separate in a single flower. In contrast ex strawberry

capsule

Simple fruit with two to many seeds ovary has several cavities and sevarl to many seeds or ovary has one cavity

legume

Simple fruit with two to many seeds, ovary with one cavity

achnene

Simple fruit( one ovary) Dry, fruit with one seed. ovary wall and seed coat are fused

microsporocytes

noun. Botany. A cell that undergoes meiosis to produce four microspores. Also called microspore mother cell.

Anthophyta ovary

base of carple protects ovules inside matures to form fruit

angiosperm anther

composed of four anther sacs

anthophyta ovule

composed of the megasporangium and other tisuees

style plant

. In plants, the _________is a structure found within the flower. It is a long, slender stalk that connects the stigma and the ovary.

anthophyta sperm nuclei

During poleen tube growht one pollen nucleus divdes into two_________

gametophyte

In angiosperms it is contained in the pollen grain

Pollen cone

In gymnosperms, pollen is produced by male cones or conelike structures.

anthophyta megasporocyte

In the ovule, produces haploid megaspores only one of which survives

Phylum Anthophyta

Kingdom Plantae Includes Seeded Vascular plants that produce coated seeds and flowers

Angiosperms

Like gymnosperms,____________ are seed-producing plants; they are distinguished from gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Contains phylum anthophyta

mulitiple fruits

Multiple fruits, also called collective fruits, are fruiting bodies formed from a cluster of fruiting flowers, the inflorescence. Each flower in the inflorescence produces a fruit, but these mature into a single mass in which each flower has produced a true fruit. Ex pinapple

angiosperm embryo

New sporophyte 2n in flowering plants

conferphyta seed

One archegonia and its zygote will develop into_______

Carpel

One of the individual female reproductive organs in a flower. A carpel is composed of an ovary, a style, and a stigma, although some flowers have carpels without a distinct style.

wind pollenation in coniferphyta

Pollen grains are blown from pollen cones to the female megasporocyte

What is the male gametophyte in anthophyta

Pollen grains developed from microspores

Coniferophyta ovulate cone

Small rounded female cones produced on stem tips observe overlapping scales which contain sporngia

Pine mature sporophyte

The ___________ is the tree, It is dipliod

Gymnosperm

The _____________ are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and Gnetales. the unenclosed condition of their seeds Contains phylum Coniferophyta, Ginkgophyta, Cycadophyta, Gnetophyta

perianth

The _____________ is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals).

anthophyta stamen

The ______________ is the pollen-producing reproductive organ of a flower includes filament and anther Number 3

double fertilization

The fusion of the two sperm nuclei with the nuclei of the embryo sac. forming zygote and endosperm

coniferphyta gametophyte

The megaspore develops to become this inside the ovule, two archegonia in which an egg will form. Fertilization by the germinatin pollen will relase a sperm nucleus into the archgonium from which will develop a zygote

coniferphyta embryo

The new sporophyte in a pine diploid

coniferphyta seed coat

The outer tissues of the ovule harden to form. 2 or 3. Dirived from parent sporophyte

Anthophyta corolla

The petals of a flower considered as a group or unit and usually of a color other than green; the inner whorl of the perianth.

zygote

The sperm fuse with the eggcell to form 2n

anthopyta ovary

This whole thing is the....

anthophyta central cell

Two polar nuclui in the center of the embryo sac that will form the endosperm

anthophyta Pollen tube

When pollen reaches the stigma it geminates to produce_____________ whic grows tdown the style to the ovule

coniferphyta microspores

____________ are land plant spores that develop into male gametophytes, whereas megaspores develop into female gametophytes. The male gametophyte gives rise to sperm cells, which are used for fertilization of an egg cell to form a zygote. In coniferphyta develop into pollen grains

anthophyta pollen

_______________ is a fine to coarse powdery substance comprising pollen grains which are male ... (reproductive) cell. In flowering plants the vegetative tube cell produces the pollen tube

Confirophyta

a conspicuous group of woody plants commonly known as the "conifers". The members of this group produce ovules that mature into seeds. These ovules and seeds are found on the upper surfaces of scale structures which often are clustered into "cones".

anthophyta microspores

a single nucleus, developed from diploid microsporcytes haploid

Anthophyta pedicel

a small stalk bearing an individual flower

achene

acheneis a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not open at maturity).

Antophyta sepals

is a part of the flower of angiosperms (flowering plants). Usually green, outer whorl of bracts typically function as protection for the flower in bud, and often as support for the petals when in bloom.

Coniferphyta Pollen

made in the microsporcytes microspores under mitosis to become pollen grains

nut

simple fruit(one ovary) dry, fruit with one seed, ovary wall hard or woody but can be separted from seed

simple fruits

simple fruits can be either dry or fleshy, and result from the ripening of a simple or compound ovary in a flower with only one pistil.

flowers

the seed-bearing part of a plant, consisting of reproductive organs (stamens and carpels) that are typically surrounded by a brightly colored corolla (petals) and a green calyx (sepals).

antophyta filament

the slender part of a stamen that supports the anther.

Anthophyta anther

the terminal part of a stamen that produces the pollen.

Anthopyta receptacle

the__________ is the thickened part of a pedicil from which the flower organs grow.