Parasitology Lab - Protozoans

Protozoans

single celled organisms which are classified according to their organelles of locomotion

organelles of locomotion

Protozoans are single celled organisms which are classified according to their _______.

Protozoans

simplest form of animals

Cilia, Flagella, Pseudopodia

organelles of locomotion of Protozoans

Nucleus, Nucleulos, Mitochondria, Locomotory Organelles

Organelles (4)

Kingdom Protista

autonomous unicellular eukaryotic organisms possessing various degrees of cellular specialization and some type of motility

nutrient storage, excretion, digestion, motility

The organelles specializes in (4) (nedm)

based upon motility

phylum is?

Size= 2-100 micrometers

facultative anaerobes- heterothropic, chemoorganotrophs

• nutrients: phagocytosis, pinocytosis, diffusion

• digestion: extracellular and intracellular

two life stages:

• trophozoite active vegetative stage

• cyst latent survival form

sites of pathogenesis

• intestinal

• urogenital

• blood and tissue

What are the Characteristics of Pathogenic Protozoa?

Phylum Sarcodina

no cell wall, no uniform shape, extension of the cell membrane in which the cytoplasm flows, cyclosis

Phylum Sarcodina

reproduce asexually by mitosis, sexually by meiosis

• trophozoite = motile vegetative stage

• cyst= latent survival stage

Phylum Ciliata

uses energy from the cell membrane

synchronized ciliary movement

phylum ciliata

two nuclei per cell

• small micronucleus governs = sexual reproduction

• large micronucleus = metabolism and growth

• both nuclei divide during asexual mitosis

only one ciliate pathogen affects humans

Phylum Ciliata

it has intracellular organelles that function in digestion and excretion

Phylum Mastigophora

motility via flagella (whip like fillaments moves in COUNTER CLOCKWISE rapid movement)

attach to the cell membrane and derive energy from movement from this membrane

most numerous of the protozoan types

all reproduce asexually'; some reproduce sexually

Phylum Sporozoa

no means of movement

not motile

all are intracellular parasites in variety of host

lack intracellular organelles

No motility

Sexual and Asexual mode of Reproduction

Intracellular Parasites

Phylum Sporozoa have three things in common (3)

Giardia Lamblia, Dientamoeba Fragilis, Trichomonas

Give me three under mastigophora

Entamoeba coli, Entamoeba histolytica, Entamoeba Dispar

Give me three Sarcodina

Balantidium Coli

Give me a Ciliophora

Toxoplasma, Bebesia spp, plasmodium spp

Give me 2 Apicomplexa

microspordium spp, vittaforma cornea, pleistophora spp

give me 3 microspora

Amebiasis - Entamoeba histolytica

Giardiasis- Giardia lamblia

Balantidiasis- Balantidium coli

crystosporidosis - crystosporidium parvum

Give me the Intestinal Protozoan Diseases

trichomoniasis - trichomonas vaginalis

Give me a urogenital protozoan disease

Malaria - Plasmodium spp

Meningoencephalitis- naegleria fowleri

Toxoplasmosis - Toxoplasma gondii

Give me Blood and Tissue Protozoan Diseases