Plant Reproduction. Two Forms of Plant Reproduction Sexual Reproduction Asexual Reproduction Meiosis...

Plant Reproduction

Two Forms of Plant Reproduction

Sexual Reproduction

Asexual Reproduction

Meiosis +

Fertilization

Mitosis +

Vegetative Propagation

Sexual Reproductio

nIn

Plants

Sexual reproduction occurs in many kinds of plants in different ways. Some plants form pollen that fertilizes eggs in the flower or cone, others produce spores.

Angiosperms reproduce using their flower structure:

The petals attract insects and birds to encourage

pollination.

The stigma, style, and ovary make up the

female structure – the pistil. The ovary houses the ovules (eggs) before

and after fertilization

The anther and filament make up the male structure

– the stamen - that produces the pollen.

When the ovary ripens it becomes fruit – that contains the seeds.

Seed

In conifers,

the plant

produces male

and female cones – male cones

contain pollen, while

female cones bear eggs.

In ferns, sexual reproduction takes place by the production of spores that fertilize eggs in

alternating generations of the plant’s life cycle.

Asexual Reproductio

n

Most plants can also reproduce new plants through asexual reproduction – also called

vegetative propagation – where new plants grow from a piece of

the old plant.

Some plants have special structures for vegetative

propagation . . .

Reproductive

Structure

Description of Structure

Plants with these Structures

tubers under-ground storage stems,

develop new shoots after dormant

season

potatoes

rhizomes under-ground runners that develop into

new plant

irises

stolens above-ground runners that grow roots of their own then develop into

new plant

strawberries

bulbs underground storage units that

grow into many new plants via division

amaryllis

corms resemble bulbs but with enlarged, solid

stem for food storage

gladiolus, crocus

Plant Reproduction

Quiz

Which numbered term above goes with A on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with B on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with C on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with D on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with E on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with F on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with G on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with H on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with I on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with J on the picture?

(Answer with a number 1-10.)

1.ovule (egg)

2.stem (pedicel)

3.sepal4.pollen

grains5.stigma6.petal7.style8.ovary9.anther10.filament

Which numbered term above goes with A on the

seed picture?

(Answer with a number 1-10.)

1.cotyledon2.embryo3.plumule4.seed coat5.radicle

Which numbered term above goes with B on the

seed picture?

(Answer with a number 1-10.)

1.cotyledon2.embryo3.plumule4.seed coat5.radicle

Which numbered term above goes with C on the

seed picture?

(Answer with a number 1-10.)

1.cotyledon2.embryo3.plumule4.seed coat5.radicle

Which numbered term above goes with D on the

seed picture?

(Answer with a number 1-10.)

1.cotyledon2.embryo3.plumule4.seed coat5.radicle

Which numbered term above goes with E on the

seed picture?

(Answer with a number 1-10.)

1.cotyledon2.embryo3.plumule4.seed coat5.radicle

Which of the following is a structure for vegetative

propagation?

a. radicle

b. seed

c. tuber

d. embryo

What kind of structure do conifers use to produce pollen

and ovules?

a. spores

b. roots

c. ferns

d. cones

The male part of the flower including the anther and

filament is called the

a. stigma

b. stamen

c. ovary

d. pedicel

The female structure of the flower

is called the

a. pistil

b. stamen

c. anther

d. filament

What kind of plants use spores for sexual

reproduction?

a. ferns

b. conifers

c. algae

d. angiosperms