Immune Response- Definition, Types, Factors, Examples
Immune Response is a mechanism of how the immune system of the host’s body responds to a harmful foreign particle or pathogen (antigen) in the body. It entails recognizing the … Read more
Faith Mokobi
MHC Class I, Class II, Antigen Processing, And Presentation
Major Histocompatibility Class I (MHC Class I) This is the first class of the MHC molecule that encodes the glycoproteins that are expressed on the surface of nearly all nucleated … Read more
Immunity- Mechanism, Components, and Immunization
As much as immunity curtails to the 430 B.C, significantly improved immunity phenomenal were made in the 18th century starting with Edward Jenner in 1798 after he noticed that milkmaids … Read more
Transmission Electron Microscope (TEM)- Definition, Principle, Images
What is a Transmission Electron Microscope (TEM)? This is a powerful electron microscope that uses a beam of electrons to focus on a specimen producing a highly magnified and detailed … Read more
Hematopoiesis- Definition, Cells, Growth Factors, Regulation
All blood cells are produced by a mechanism known as hematopoiesis, arising from a single cell type known as a hematopoietic stem cell (HSC). Stem cells are cells that differentiate … Read more
Cells of Immune System- Types and Examples
The immune system is made up of different immune organs and tissues located all over the body. The immune organs are categorized based on their functions and there are two … Read more
Passive Immunity- Definition, Characteristics, Types, Examples
Passive immunity is developed by antibodies that are produced outside and then introduced into the body. Passive immunity is acquired when antibodies are introduced into the body from an external … Read more
Active Immunity- Definition, Characteristics, Types, Examples
Active immunity develops due to the production of antibodies in the body. Active immunity is attained by exposure to a pathogen leading to the production of antibodies in the body. … Read more
Digital Microscope- Definition, Principle, Parts, Types, Examples, Uses
What is a Digital Microscope? A digital microscope is a modern microscope that lacks an eyepiece, an immense difference from the traditional optical microscope. They have a digital camera which … Read more
Endocytosis vs Exocytosis (Similarities and Differences)
Image Source: Freepik Company S.L. Similarities of Endocytosis and Exocytosis Endocytosis and exocytosis mechanisms are forms of Active Transport, both using energy to transport particles in and out of the … Read more