Are viruses living or not? Origin and properties

are viruses living or not ?

Are viruses living or not? is a very question to understand. Virus has attributes of both living organisms and nonliving objects. Thus it can be considered as both living and nonliving Origin of Virus There are two main views on the origin of the virus A. I. Oparin suggested that complex molecules of different organic … Read more

Difference between Active and Passive immunity

Difference between active and passive immunity

Immunity Definition Immunity definition: It is the ability of a body to fight against disease-causing microorganisms is called immunity. Immunity Classification Immunity is broadly divided into two main categories Innate immunity Acquired immunity. Innate immunity Another name of innate immunity is inborn immunity is referring to a non-specific type of defense element with which an … Read more

Plasma membrane: Definition and Composition

Definition of Plasma membrane A plasma membrane is defined as a covering or envelope which encloses almost all types pf cells whether it is plant or animal. It is also known as the cell membrane, cytoplasmic membrane or cell or plasma lamella. The term Cell membrane was coined by Nageli and Carmer 1855. Composition of … Read more

Virus difference: animal, plant, & bacteriophage

virus difference

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, they are widely categorized under three different types namely animal, plant viruses, and bacteriophage. Although all of them have basic similarities depending on the host type and genetic material these … Read more

Types of viruses: structure, classification and reproduction

virus types

Introduction There is no nomenclature system for virus classification since they are not considered truly living. As we all know that living organisms have a definite cellular structure. That raises an interesting question of what actually viruses are. And what are the types of viruses and their structure? Viruses are named according to the type … Read more

Types and simple definition for viruses and structure

virus definition

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 tobacco are smaller than that of bacteria. These are very very minute submicroscopic biological entities. Thus, definition for viruses is that it does not have any cellular organelles but definitely … Read more

Plant secondary metabolites: Types and Functions

plant secondary metabolites

Introduction We are studying a lot about flavonoids and alkaloids in food and their health benefits in day-to-day blogs. Today with the concept of superfoods getting more and more prominent so are the secondary metabolites present in them. Secondary metabolites are the main important components behind each health benefits and medicinal properties of the plants. … Read more

Mitochondria Powerhouse of the cell

mitochondria powerhouse of the cell

Introduction The mitochondria powerhouse of the cell. It is a semi-autonomous cellular organelle that generates ATP which are the energy-rich compounds and are the main factors of the cell’s basic function. What is Mitochondria? Mitochondria is a double membrane-bound structure that is difficult to locate in a cell and requires a specific stain. Detail structure … Read more

Definition of cell, Theory, and Details

definition of cell

Definition of cell The definition of the cell is simple, “It is the fundamental, structural, and functional unit of all living organisms“. Anton Von Leeuwenhoek first discovered the cell. What is a Cell theory? Malthias Schleiden (German Botanist) on Plants and Theodore Schwann (British Zoologist) on animals independently stated the cell theory in the years … Read more