In Chlorophyceae, sexual reproduction occurs by isogamy, anisogamy or oogamy.
Algae are simple, chlorophyll-bearing, thalloid, autotrophic and largely aquatic organisms. They are found in various habitats such as soils, moist stones, wood and soils. Few form associations with fungi and animals. The algae are divided into three main classes
Chlorophyceae are commonly known as green algae, their plant body may be unicellular, colonial or filamentous. They are usually grass green as a result of the dominance of pigments chlorophyll a and b. The pigments are localized in definite chloroplasts.
Sexual reproduction in Chlorophyceae
Isogamy: The gametes are similar in size and shape. These gametes are not classified as male or female.
Anisogamy: It is the fusion between two gametes which are either dissimilar in size or in both size and morphology. It is observed in Chlamydomonas.
Oogamy: Oogamy is a type of anisogamy. The male gamete is smaller than the female gamete.