A disease is a condition in which the health of an organism is impaired. There are four main groups of diseases:
Pathogenic
Diseases caused by organisms in humans are known as pathogenic diseases. The word pathogen is derived from a Greek word that means 'giving rise to suffering'. Pathogenic diseases can be caused by a number of agents like bacteria, viruses, fungi, prinons, etc. All these pathogenic agents can lead to a variety of diseases and conditions. In this article we will concentrate on pathogenic diseases due to bacteria.
Deficiency
Disease associated with characteristic and identifiable symptoms, signs, or pathological findings, due to insufficient intake, defective absorption or utilization, or excessive metabolism of one or more nutrients. See also anaemia-3;beriberi; pellagra; protein-energy-malnutrition-3; scurvy.
Hereditary
A disease or disorder that is inherited genetically, where illness is transmitted form parent to child.Examples of hereditary disease consists of sickle cell anemia, cancer of the breast, as well as Diabetes and hypertension can lso be in that category.
Physiological
A physiological disease is a disease in which the organs or the systems in the body malfunction causing illnesses. ADHD, stress, sleep disorder, bipolar, Alzheimer disease, eating disorder, anxiety, Obsessive Compulsive Disorder (OCD), gender identity disorder, depression, gambling, etc. are all example of Physiological diseases.
Written by Romario Jarrett
The main groups of pathogenic organisms causing disease in the UK include bacteria (e.g. Staphylococcus aureus), viruses (e.g. influenza virus), fungi (e.g. Candida species), and parasites (e.g. Giardia lamblia). These organisms can cause a range of illnesses from common infections to more serious diseases.
The main groups of unicellular organisms are bacteria, protozoa, unicellular algae, and unicellular fungi or yeasts. And some can become disease-causing agents, also known as pathogens.
Viruses, Bacterial, Parasites, Fungal, Worms and Protozoas which one is the smallest?
yeast and moulds
The seven main groups of classification are Kingdom, Phylum, Class, Order, Family, Genus, and Species. These groups are used in the biological classification of living organisms known as taxonomy.
The four main groups of eukaryotes are plants, animals, fungi, and protists. These groups encompass a wide variety of organisms with different characteristics and modes of life.
The main groups of organisms in the animal kingdom include mammals, birds, reptiles, amphibians, and fish. These groups are characterized by their ability to move, consume organic matter, and lack of cell walls.
Organisms are placed into groups based on shared characteristics such as physical appearance, genetic similarities, evolutionary relationships, and ecological roles. This classification helps us organize and understand the diversity of life on Earth.
Organisms are typically divided into five main groups: bacteria, archaea, protists, fungi, plants, and animals. Each group represents distinct branches on the tree of life, with unique characteristics and evolutionary histories. These groups allow scientists to classify and study the diversity of life on Earth.
The bacterium Salmonella typhi is the main microorganism responsible for causing typhoid fever in humans. It is typically transmitted through contaminated food or water.
pseudomonas species,proteus species,penicillium,aspergillus,flavobacterium,salmonella are common spoilage organisms
a disease causing microorganism is called a pathogen. origin- pathos=suffering disease (in greek). There are two main types; bacteria and virus. all pathogens are microorganisms but all microorganisms are not pathogens. example- mycobacterium tuberculosis is a pathogen that causes tuberculosis.