Plant Reproduction By Diana L. Duckworth Rustburg High School Campbell County

Key terms Haploid (1N or N) –one copy of each chromosome –gametophytes are haploid –Formed by meiosis (reduction cell division); pairs of chromosomes are divided into different cells –Each daughter cell gets one of each chromosome Diploid (2N) –two copies of each chromosome –Formed by union of sperm & egg (forms a zygote) –Sporophytes are diploid Mitosis – cell division in which all chromosomes are copied; produces two cells with identical genetic material Annual – one year life cycle; Biennial – 2 growing seasons; Perennial – lives for several years, reproduces every year

Non vascular plants

Seedless vascular plants /29/can-you-see-the-light-part-iii/

Reproduction in Gymnosperms

Reproduction in Angiosperms

Anatomy of a Flower

Comparison of Gymnosperm & Angiosperm seeds