1. Life Cycles of Protists

2. Life Cycle with Diploid Adults
Mitosis
Zygote 2N N
Fertilization
Meiosis
Eggs
Sperm

3. Life Cycle with Haploid Adults
Zygote 2N N
Fertilization
Meiosis
Spores
Eggs
Sperm
Adult
Mitosis

4. Life Cycle with Alternation of Generations
Mitosis
Adult
Zygote 2N N
Fertilization
Meiosis
Spores
Eggs
Sperm
Adult
Mitosis

5. Plasmodium zygote mitosis 2N meiosis fertilization N eggs sporozoites
sperm
sporozoites
merozoites
gametocytes

6. Laminaria Sporophyte Mitosis Zygote 2N N Fertilization Meiosis
contains Sporangia
Mitosis
Zygote 2N N
Fertilization
Meiosis
Zoospores
Sperm Eggs
Female Gametophyte
Male Gametophyte
Mitosis

7. Meiosis (in sporangium)
Acellular Slime Molds
Plasmodium
(nucleus only)
Mitosis 2N N
Fertilization
Meiosis (in sporangium)
Spores (resistant)
Amoeboid or
flagellated cells

8. Cellular Slime Mold Zygote 2N Meiosis Fertilization N Amoeboid cells
(becomes a giant cell) 2N N
Fertilization
Meiosis
Amoeboid cells
Some cells
become spores
(resistant)
Migrating colony
Fruiting structures

9. Chalmydomonas zygospore 2N fertilization meiosis N + gamete - gamete
adult
asexual