EX. 4 PREPARING A WET MOUNT AND OBSERVING

MICROSCOPIC ORGANISMS

AlgaeKingdom – ProtistaEukaryotic, single celled or

multucellular organisms with a cell wall, live in water and are photosynthetic

Found in fresh water, sea water and salt water (Great Salt Lake)

Prepared Algae Slides

1. Spirogyra 2. Ulothrix 3. Oedogonium 4. Chlamydomonas 5. Volvox

Spirogyra Filamentous green

algae commonly found in fresh water

Chloroplasts are spirally arranged

Spirogyra

Ulothrix Filamentous green

algae found in fresh and marine water

Thrive in low temps of spring and winter

Ulothrix

Oedogonium Filamentous green

algae found in fresh water

Oedogomium

Chlamydomonas - Fresh water and

marine water

Volvox - Freshwater algae found in ponds

and ditches

Pond Water (Hay Infusion) Observe living microscopic organisms Check for life characteristics True Motility vs. Brownian Movement Phototaxis – positive or negative Chemotaxis – positive or negative Aerotaxis – positive or negative

Amoeba Euglena

Amoeba Euglena

Didinium Stentor

Didinium Stentor

Paramecium Vorticella

Paramecium Vorticello

Actinosphareum Blepharisma

Actinosphareum Blespharisma

Volvox Rotifers

Volvox Rotifers

Rhodospirillum rubrum