Electron microscope: Definition and types
Introduction Microscopy helps us to understand or gives access to see the direct images of various tissues, organisms, organelles, microorganisms, molecular assemblies, and proteins. It […]
Microbiology
Scanning electron microscope (SEM): Structure and description
Introduction A microscope is used to see objects that are not visible to the naked eye. The electron microscope is a breakthrough invention in microbiology. […]
Gram-positive and Gram-negative bacteria: Difference
Introduction Microorganisms are categorized under bacteria, viruses, fungi, and mycoplasma. Some of the microorganisms are disease-causing some are saprophytes or some are heterotopic in nature. […]
Are viruses living or not? Origin and properties
Introduction Are viruses living or not? is a very difficult question to understand. The virus has attributes of both living organisms and nonliving objects. Thus it […]
Virus difference: animal, plant, & bacteriophage
Difference between animal, plant virus, and bacteriophage Viruses are very small even smaller than bacteria and are mainly parasitic in nature. Depending upon the host, […]
Types of viruses: structure, classification and reproduction
Introduction There is no nomenclature system for virus classification since they are not considered truly living. As we all know living organisms have a definite […]
Types and simple definition for viruses and structure
Virus definition In Latin, the word virus means poisonous or venomous fluid coined by Dmitri Ivanowsky (1892). He recognized certain microbes causing mosaic diseases of […]