Yersinia pestis: Introduction and morphology

Introduction Formerly known as Pasteurella pestis. Falls in family enterobacteriaceae. Discovered in Honkong in 1894 AD by Yersin and Kitasato. Important medical species are Y.pestis,...

Differences between Flagella and Pili

S.N Flagella S.N Pili 1. These are helical structures but are not straight. 1. These are non-helical structures but are straight. 2. These are long...

Cough, sneezing and swallowing reflexes

Introduction These are collectively called respiratory protective reflexes. Protects lungs and air passage from foreign particles. These reflexes modify respiratory process so that elimination of foreign...