Acquired Immunity
It is known as Adaptive or Specific immunity. Non-specific immunity is not specifically directed against a particular microbe. Specific immunity involves the production of a specific type of cell or specific molecule (antibody) to destroy a particular antigen. It is capable of r..
Acquired Immunity
Non-specific immunity is not specifically directed against a particular microbe. Specific immunity involves the production of a specific type of cell or specific molecule (antibody) to destroy a particular antigen. It is capable of recognising and selectively eliminating s..
Blood Groups
There are four types of blood among the humans. These are called the blood groups . The blood groups are classified based on the presence or absence of certain proteins and antibodies. In human blood, the membranes of the Red blood Corpuscle have certain proteins called the antige..
Question 48
Question: What is agglutination? Answer: The sticking together (clumping) of red blood cells because of the reaction between antigens and antibodies is called agglutinatio..
Humoral Immune System
The plasma membrane of each B cell should be sensitised by contact with a specific antigen for the release of antibodies. The plasma cells do not migrate to the site of infection but act through the lymph. So they form the humoral immune system. The B lymphocytes are short..
Clonal Selection
B and T lymphocytes have specific receptors on their surface. In B cells, this receptor is the antibody produced by that cell. When this receptor interacts with the antigenic determinant specific to it, the B lymphocyte becomes activated and divides to form a clone of cells. The..
Clonal Selection
B and T lymphocytes have specific receptors on their surface. In B cells, this receptor is the antibody produced by that cell. When this receptor interacts with the antigenic determinant specific to it, the B lymphocyte becomes activated and divides to form a clone of cell..
Immune System and Human Health Summary
Summary - 1) The human body has elaborate mechanisms for protection against foreign bodies, germs and cancer cells. 2) Immunity is either innate or acquired. 3) Innate or non-specific immunity refers to a wide variety of body responses against a wide range of pathogens. 4) Previous exposure to an h..
Active Immunity
Active immunity develops as a result of the contact of an individual with pathogenic organisms or their products. They stimulate the body to produce antibodies in response to the antigens. The immunity thus produced is specific for a particular disease. For e.g., the immunity es..
Multiple Alleles
. He named these antigens as antigen A and antigen B. Based on the presence or absence of these antigens, he classified the human blood into four groups namely A, B, AB and O. The following table represents the antigens and the corresponding an..
See what our Users say :
Tutor has given me a lot of good advise for my study. They has the package to be the best and the best teachers! they are not just have the teaching skills and understanding the subject matters as well. Thank you.
All the solutions that these tutors give are correct I got a 83% on my last quiz, Thank you so much - Giara
Turtors are so good, and patient and most important knows their stuff. They really tutor in a very professional way. Their system is unique and they really knows how to explain and made sure you undertand. They even put stuff from a book into the white board, just to show me how the process of my question - Paul
I learned a lot about a lot of stuff with Tutor Vista. it was super cool beans, so cool it was AMAZING!!!!!!!!! - brendon