Types of reproduction:

Asexual : Occurs when a portion of a plant develops into a separate new plant.

Sexual: Usually requires two parent organism

* Chapter 8 Plant processes and

reproduction :

Lesson # 3: Objective : Describe plant´s

reproduction among their structure

Alternation of generations:

Occurs when the life cycle of an organism alternates between

diploid and haploid.

The only human haploids cells are sperm and eggs.

As a result ,you will live your entire life as a diploid organism.

* Chapter 8 Plant processes and

reproduction :

Lesson # 3: Objective : Describe plant´s

reproduction among their structure

Alternation of generations:

Occurs when the life cycle of an organism alternates between

diploid and haploid.

Seedless plants reproduction:

* Chapter 8 Plant processes and

reproduction :

Lesson # 3 Objective : Describe plant´s

reproduction among their structure

Seedless plants reproduction:

- Spores: Haploid cells, daughter cells produced from haploid

structures.

* Chapter 8 Plant processes and

reproduction :

Lesson # 3 Objective : Describe plant´s

reproduction among their structure

Pollen grain: male reproductive structure of a seed plant.

Pollination : occurs when pollen grains land on a female reproductive structure (same species)

Ovule: Female reproducive structure of a seed plant where haploid egg develops

Embryo: an immature diploid plant that develops from the zygote

Seed: It is make up of an embryo,its food supply, and a protective covering

* Chapter 8 Plant processes and

reproduction :

Lesson # 3: Objective : Describe plant´s reproduction

among their structure

Seed structure

* Chapter 8 Plant processes and

reproduction :

Lesson # 3 : Objective : Describe plant´s reproduction

among their structure . Seed plants (flowerless)

or Gymnosperm

* Chapter 8 Plant processes and

reproduction :

Lesson # 3 Objective : Describe plant´s reproduction

among their structure .

Examples of flowerless seed plants or

Gymnosperm:

* Chapter 8 Plant processes and

reproduction :

Lesson # 3 Objective : Describe plant´s reproduction

among their structure .

Parts of a flower:

* Chapter 8 Plant processes and

reproduction :

Lesson # 3: Objective : Describe plant´s reproduction

among their structure . Seed plants (flower)

or Angiosperm

* Chapter 8 Plant responses

Lesson # 2 : Objective : Describe plants growth according to

their stimuli .

Flower of a corn Fruit of a corn Seed of a corn

* Chapter 8 Plant responses:

Lesson # 2 Objective : Describe plant´s growth according

to their stimuli .

Stimuli

Changes in an organism´s environment that cause a

response.

Tropism

Response that results

in plant growth toward

or away stimuli

* Chapter 8 Plant responses :

Lesson # 2 Objective : Describe plant´s growth according

to their stimuli .

Types of plant stimuli

1- Light: Grows toward or away from light called

phototropism. Leaves and stems tend to grow in the

direction of light.

* Chapter 8 Plant processes and

reproduction : Objective : Describe plant´s reproduction

among their structure .

Types of plant stimuli

1- Touch: They can wrap around or cling to object.

This is called thigmotropism

* Chapter 8 Plant processes and

reproduction : Objective : Describe plant´s reproduction

among their structure .

Types of plant stimuli

1- Gravity: Response of a plant to gravity is calles

gravitropism.

Stems grow away from

gravity ,while roots grow

toward gravity . No matter

how a seed lands on soil.