Biological Classification: Euglenoids, Slime Moulds, and Protozoans

Vocabulary flashcards covering the characteristics and examples of Euglenoids, Slime moulds, and various groups of Protozoans based on the lecture notes.

Euglenoid

Fresh water organisms mostly found in stagnant water that lack a cell wall and instead have a protein-rich layer called a pellicle.

Pellicle

A protein-rich layer found in Euglenoids that makes their body flexible.

Euglena

A type of Euglenoid that is photosynthetic in the presence of sunlight but behaves like a heterotroph in the absence of sunlight.

Slime moulds

Saprophytic protists that form an aggregated plasmodium under suitable conditions.

Plasmodium

An aggregation formed by slime moulds in suitable conditions which may grow and spread over several feet.

Spores

Resistant structures produced by the fruiting bodies of slime moulds during unfavorable conditions that can survive for many years.

Protoztoans

Heterotrophic organisms that live as predators or parasites and are considered primitive relatives of animals.

Amoeboid protozoans

Organisms that live in fresh water, sea water, or moist soil and capture prey using pseudopodia (false feet).

Pseudopodia

Known as "false feet," these are used by amoeboid protozoans for movement and capturing prey.

Entamoeba

A parasitic amoeboid protozoan; notably, marine forms of this group have silica shells on their surface.

Flagellated protozoans

Protozoans that are either free-living or parasitic and possess flagella for movement.

Trypanosoma

An example of a flagellated protozoan that is a parasite and causes sleeping sickness.

Ciliated protozoans

Aquatic protozoans that are characterized by the presence of cilia and a wall-like cavity (gullet).

Sporozoans

Organisms characterised by infectious spore like stage in their life cycle

ex: plasmodium

Chrysophytes

A group of golden algae known for their chlorophyll pigments and silica cell walls, primarily found in aquatic environments.

Dinoflagellates

A group of single-celled protists that possess two flagella and are often bioluminescent, playing a significant role in marine ecosystems.