MBIO 302 Chapter Notes - Chapter 5: Zooplankton, Phytoplankton, Hookworm Infection

• School: UND
• Department: Microbiology and Immunology
• Course: MBIO 302
• Professor: Sarah Sletten

Document Summary

Each with their own life cycles, morphological characteristics, nutritional needs. Some are responsible for major world wide diseases (malaria, giardia) Plankton - drift/ float on water o o. Some are parasitic - carry out life cycle within a host and causing illness. Some are beneficial symbionts- provide metabolic services to host. Trophozoite feeding and growing part of a life cycle. Cyst encapsulated stage of life cycle that protects cell from harsh conditions. Contractile vacuoles- move water in and out of the cell for osmotic regulation. Although they are multicellular and visible without a microscope, we study them in microbiology because many species are identified by their microscopic eggs and larvae. Many have complex reproductive cycles with several different life stages and more than one type of host. Eggs are often found in stool and around anus. Ascaris limbericoides- most common nematode parasite in humans; not as common in developed countries. Enterobius vermicularis- pinworm is most common nematode infection in the.