GENERAL CHARACTERISTICS
GENERAL CHARACTERISTICS
Embedded Files
1. Protozoa (Animal-like Protists)
1. Protozoa (Animal-like Protists)
Nutrition: Heterotrophic (ingest food like animals).
Cell type: Unicellular.
Locomotion: Move using cilia, flagella, or pseudopodia.
Reproduction: Mainly asexual (binary fission); some also reproduce sexually.
Habitat: Aquatic, moist soil, or inside other organisms (some parasitic).
Types of Protozoa:
Amoeboid Protozoa – Move using pseudopodia (false feet).
Example: Amoeba proteus.
Flagellated Protozoa – Move using flagella.
Example: Trypanosoma, Euglena (has both plant- and animal-like features).
Ciliated Protozoa – Move using cilia (short hair-like structures).
Example: Paramecium caudatum.
Sporozoans – Non-motile and parasitic.
Example: Plasmodium (causes malaria).
2. Algae (Plant-like Protists)
2. Algae (Plant-like Protists)
Nutrition: Autotrophic – perform photosynthesis using chlorophyll.
Cell type: Unicellular or multicellular.
Habitat: Mostly aquatic (freshwater and marine).
Pigments: Contain chlorophyll and other pigments for photosynthesis.
Reproduction: Both asexual and sexual.
Importance: Produce oxygen and form the base of aquatic food chains.
Major Groups of Algae:
Green Algae (Chlorophyta): Contain chlorophyll a and b.
Example: Chlamydomonas, Volvox, Spirogyra.
Brown Algae (Phaeophyta): Contain chlorophyll a, c and brown pigment fucoxanthin.
Example: Fucus, Laminaria.
Red Algae (Rhodophyta): Contain chlorophyll a and red pigment phycoerythrin.
Example: Polysiphonia, Gelidium.
Diatoms: Have silica cell walls; appear golden-brown.
Example: Navicula, Coscinodiscus.
CLASSIFICATIONS
CLASSIFICATIONS
Page updated
Google Sites
Report abuse