Plant reproduction

Asexual reproduction

A process where a portion of one plant develops into a new and identical plant to its parent plant.

Sexual reproduction

When a plant's sperm combines with an egg to create a new organism.

Alternation of Generations

The switching of a plant's life cycle between diploid and haploid generations.

Diploid

The full number of chromosomes in an organism.

Haploid

Half the number of chromosomes in an organism.

Pollen grains

Male reproductive tissue that produces sperm cells.

How are pollen grains carried to the female reproductive structure?

By wind, animals, gravity, and water.

Ovules

Structures where the haploid egg develops.

What does the ovule produce?

Embryo.

Zygote

A fertilized embryo.

Embryo

An immature diploid plant.

Seed

Contains a food supply for the developing plant.

Reproductive structure of gymnosperms

Cones.

Seeds are part of which cone?

Female.

Pollen is part of which cone?

Male.

Reproductive organ of angiosperms

Stamen.

Male reproductive structure of a flower

Stamen.

Two parts of the male structure

Stamen and anther.

Female reproductive structure of a flower

Pistil.

Three parts of the female structure

Stigma, style, and ovary.

Pollination

The process of pollen traveling to the sticky stigma.

Fertilization

When pollen enters the ovule.

What happens to the fertilized egg after fertilization?

It becomes a seed.

What sometimes is produced from angiosperms that contains the seeds?

Fruits.

Three examples of fruits.

Strawberry, banana, and tomato.

How do fruits help with seed dispersal?

Animals can spread the seeds.