Chapter 38: Flowering Plant Reproduction and Development

Stamens

Stamens

________ are reproductive structures that produce male gametophytes- also known as pollen grains.

Sexual reproduction

________ is based on meiosis and fertilization.

Germination

________ is a resumption of growth and development.

Pollination

________ (transfer of pollen grains from an anther to a stigma) occurs, and gametophytes produce sperm (male gametes) and eggs (female gametes) by mitosis.

Asexual reproduction

________ does not involve fertilization.

Meiosis

________ occurs in sporophytes and results in the production of haploid spores.

radicle

The ________, or embryonic root, emerges first, and it then develops into the mature root system.

Embryogenesis

________ is the developmental process by which a single- celled zygote becomes a multicellular embryo.

Dormancy

________ is usually a feature of seeds from species that inhabit seasonal environments, where for extended periods conditions may be too cold or dry for seedlings to thrive.

Fertilization

________ occurs when two gametes fuse to form a diploid zygote.

Self fertilization

________, or selfing, occurs when a sperm and an egg from the same individual combine to produce offspring.

Vegetative development

________ produces the nonreproductive portions of the plant body- the roots, leaves, and stems.

diploid phase

An individual in the ________ of the life cycle is called a sporophyte, while an individual in the haploid phase of the life cycle is called a gametophyte.

Sepals

________ are leaflike structures that make up the outermost parts of a flower.

Pollination syndromes

________ are suites of flower characters that are associated with certain types of pollinators.

Meiosis

________ and spore production occurs inside structures called sporangia.