Microorganisms Standard 5 th 6 grade Part 1

Microorganisms Standard 5 th 6 grade Part 1

in water…

Green Algae microorganism that can perform photosynthesis Many are flagellated for locomotion There are many shapes and sizes (sphere, filaments) can be different colors (green, blue green, red, yellow, brown) Volvox

Diatoms Delicate unicellular organisms Yellow brown chloroplasts Silica cell walls Pen-shaped and centric (cylinder) Form long chains

Desmids Found in fresh water Have specific water requirements Certain acidity Low nutrients Different shapes and sizes Related to algae

Aquatic Insect Larvae Macroscopic (can see them) Can be transparent; study internal systems Breath through trachea

Crustaceans Arthropods group (crabs, lobsters) Plankton, water fleas, ostracods, copepods Segmented limbs, hard external skeleton made of chitin Antenna used for locomotion Daphnia

Rotifers Multi-celled animals Crown of cilia for locomotion and to collect food Feet can secrete a sticky substance to attach them to a surface This Collotheca carries an egg near its foot

Ciliates Unicellular protists with cilia Cilia used for locomotion and food collection Contain organelles

Bacteria Most ancient life forms Produced O 2 for our atmosphere Bacteria are everywhere, and very abundant Inside your mouth there are more bacteria than all the people on the Earth Various shapes and sizes, very small! Cyanobacteria = blue green water cyanobacteria, Nostoc Flagella for locomotion

Flagellated Protozoa Single celled organisms that cannot be put in any other category Photosynthesize and consume organic matter Flagella for locomotion and feeding Can have cellulose armored plates Dinobryon, a colony of Chrysophytes showing flagella and red eyespots

SUN ANIMALCULES Axopodia = long stiff projections of cytoplasm Limits locomotion Excellent for capturing prey Actinosphaerium, a large sun animalcule, spreading it's axopodia