What is the general life cycle of a protozoan?

During its life cycle, a protozoan generally passes through several stages that differ in structure and activity. Trophozoite (Greek for “animal that feeds”) is a general term for the active, feeding, multiplying stage of most protozoa. In parasitic species this is the stage usually associated with pathogenesis.

What are the 4 major classifications of protozoa and their unique characteristics?

What Is a Protozoa? Protozoans consist primarily of eukaryotic and single-celled organisms. They are represented by four major groups namely Flagellates, Ciliates, Sarcodina, and Sporozoans. In some systems of biological classification, protozoan is a high-level taxonomic group.

Which of the following are characteristics of protozoa?

What are the characteristics of Protozoa? They are unicellular, chemoheterotrophs (get energy from breaking down organic matter), have special structures for ingesting food and are capable of reproduction.

Which of the following is not a characteristic feature of protozoans?

Answer and Explanation: The option that is NOT a characteristic of protozoans is c) reproduce sexually via binary fission.

What are the 5 characteristics of protozoa?

Superclass A: Mastigophora

  • They are commonly called flagellates.
  • Locomotory organelles are flagella in adults.
  • The body is covered by a pellicle.
  • Binary fission is longitudinal.
  • They are mostly free-living though some are parasitic.
  • Nutrition is autotrophic or heterotrophic or both.

What are the major characteristics of protozoa?

They are parasites or free-living.

  • They have flagella for locomotion.
  • Their body is covered by a cuticle or pellicle.
  • Freshwater forms have a contractile vacuole.
  • Reproduction is by binary fission (longitudinal division)
  • Examples: Trypanosoma, Trichomonas, Giardia, Leishmania, etc.

What are the common characteristics of all the protozoans?

What are the four groups of protozoa and which characteristic separates these four groups?

For our purposes, there are only 4 groups of protozoa that will be covered here: these groups are separated by motility and cell structure.

  • Amebas (representative: Ameba proteus)
  • Flagellates (representative: Trypanosoma, Euglena)
  • Ciliates (representative: Paramecium)
  • Apicomplexa (representative: Plasmodium)

What are the morphological characteristics of protozoa?

Protozoa, or protozoans, are single-celled, eukaryotic microorganisms. Some protozoa are oval or spherical, others elongated. Still others have different shapes at different stages of the life cycle. Cells can be as small as 1 μm in diameter and as large as 2,000 μm, or 2 mm (visible without magnification).

What are two characteristics of protozoa?

Which of the following character is found in all protozoans?

So, the correct answer is ‘Eukaryotic organization’