BIO SCI 94 Lecture Notes - Lecture 18: Protozoa, Osmosis, Cell Membrane

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Michael Clegg

Document Summary

The simples of all eukaryotic organisms: where do they live, fresh water, salt water, damp land. A small capsulelike sac that encloses certain organisms in their dormant stage. Makes it possible for protozoa to live longer: other features, size, has the highest surface ar ea ratio of all animals. "oilw:e: single cells (unicellular), have organelles but no organs. Regulates atp (energy) r -made up of phospholipids & proteins: cell membrane/plasma membrane. Separates inside from outside (regulates movement in lout) A special kind of diffusion depending on where concentation is the greatest. Covers the paramecium and is what gives it a definite permanent shape. lorica: A hard protective case or shell that. Animal can move inside of : test: Secreted by some free-living freshwater amebas: arcella : lives in fresh water ponds. When the ameba divides, it first constructs a second test, which is adopted by one of the two offspring, the other remains in the original test.