ENH 222 Study Guide - Midterm Guide: Lysosome, Intermediate Filament, Peroxisome

• School: Ryerson University
• Department: Environmental Health
• Course: ENH 222
• Professor: Corrine Ong

Document Summary

Coat may be enclosed in a lipid envelope. Viruses replicate only when they are in a living host cell 1798. Prokaryotes do not have nuclear membranes relatively simple single celled organisms carbohydate/protein (peptidoglycan) cell walls divide asexually by binary fission archaea. Chitin cell walls reproduce asexually or sexually algae eukaryotes have nuclear membranes multicelluar or unicellular (microscopic types) cellulose cell walls . Reproduce asexually or sexually protozoa eukaryotes have nuclear membranes unicellular may be motile via pseudopods, cilia, or flagella divide asexually or sexually. Parasites -eukaryotes have nuclear membranes & are multicellular helminths -flatworms and round worms microscopic stages in life cycle s insects lice, mites viruses. Acellular consist of dna or rna core surrounded by a protein coat. Light microscopy simple microscope only one lens. Clm resolving 0. 2 um distinguishes between 2 point great than 0. 2um shorter light waves great resolution.