Chapter 28 - Protists

Mitosomes

Mitosomes

________ are shrunken mitochondria found in diplomonads.

Excavates

________ include parasites such as Giardia, as well as many predatory and photosynthetic species, as shown in the image attached.

Diplomanads

________ obtain their energy through anaerobic metabolic processes.

Parabasalids

________ also have decreased mitochondria, known as hydrogenosomes, which generate some energy anaerobically while emitting hydrogen gas as a byproduct.

majority of eukaryotes

The ________ are single- celled creatures.

Protists

________ are important members of ecological communities.

parasites

Many diplomonads are ________, including the notorious Giardia intestinalis, which lives in mammalian intestines.

Trichomonas vaginalis

________, a sexually transmitted parasite that infects around 5 million individuals each year, is the most well- known parabasalid.

prokaryotic flagella

They are not the same as ________, which are filaments made up of globular proteins linked to the cell surface.

Plastids

________ are considered to be the offspring of cyanobacteria that were devoured by early eukaryotic cells.

Giardia intestinalis

________ is a parasitic diplomonad.

plastid bearing lineage

The ________ gave rise to red algae and green algae.

eukaryotes

Protists, like plants, animals, and fungi, are ________; they belong to the category of Eukarya, one of the three domains of life.

Diplomanads

________ feature two equal- sized nuclei and many flagella.

Protists

________ have a wide range of life cycles and structural and functional diversity.

Protists

________ and other eukaryotes, unlike prokaryotes, contain a nucleus and other membrane- enclosed organelles, as well as a cytoskeleton that allows them to have asymmetric shapes and change shape when they eat, move, or grow.

Protists

________ that produce photosynthetically are among the most significant producers in aquatic ecosystems.