Acetabularia is an exceptionally large, unicellular green alga that challenges the concept that all cells are small. It has been a valuable subject in genetics research since 1943.

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Green algae (Chlorophyta) are photosynthetic organisms characterized by cellulose cell walls, starch carbohydrate storage, and chlorophyll a and chlorophyll b pigments. They display diverse life forms ranging from unicellular to colonial and multicellular, which serves as a model for studying the evolution of multicellularity.

Green Algae

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

Chlorella is a large, nonmotile, unicellular green alga that challenges the notion that all cells are small. It has been utilized in genetics research since 1943.

Chlorella

Acetabularia

Volvox is a colonial, unicellular green alga that forms a sphere of many cells. Upon rupturing, these colonies release smaller, internally housed green spheres.

Volvox

Ulva, commonly known as sea lettuce, is a large, multicellular green alga recognized by its edible, green blades.

Ulva

*Chlamydomonas* is a unicellular green alga characterized by two flagella, a single large chloroplast, a nucleus, starch granules, and a light-sensitive stigma (eyespot). It is widely studied as a model organism in molecular biology research.

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