Fimbriae vs Flagella Both Fimbria (plural Fimbriae) and Flagellum (plural flagella) are the filamentous proteinaceous structures found on the surface of some bacterial cells. Fimbriae definition: Fimbriae are bristle like short fibres occurs on the surface of some Gram positive and Gram negative bacteria. Fimbriae enable the bacterial cell to […]
Fimbriae vs Pili Difference between Pili and Fimbriae: Both Fimbria (plural Fimbriae) and Pilus (plural Pili) are the filamentous proteinaceous structures found on the surface of some bacterial cells. They extend from the surface of the bacterial cell wall and can have many functions such as attachment, adhesion and assisting […]
Murein vs Pseudomurein The majority of Bacteria and Archaebacteria have a rigid cell wall around its plasma membrane. The peptidoglycan (also called murein) cell wall, which is considered as the biomarker of bacteria, is absent in the cell wall of Archaea. However, the members of Archaea show great diversity in […]
1. Penicillin-resistant bacteria produce β-lactamase which inactivates penicillin by: a. Esterifying the carboxyl group b. Oxidizing S atom c. Hydrolyzing the side chain d. Hydrolyzing the C-N bond Ans. (d) β-lactamases or penicillinase are a class of enzymes produced by some bacteria which degrade penicillin antibiotic and thereby impart resistance […]
H.S.A. Natural Sciences Previous Question Papers Kerala Public Service Commission (K-PSC) (HSA Natural Science Exam 2006) Original question paper of Kerala PSC HSA (High School Assistant) in Natural Sciences (Biology, Life Science, Botany and Zoology) examination conducted by Kerala PSC (Kerala Public Service Commission) for the appointment of High School […]