How can an organism immunized against future infections
How can an organism which once underwent contact with an antigen be immunized against the future infections by similar agent?
Expert
This phenomenon is termed as immune memory. Whenever an antigen makes contact for the initial time with cells of humoral immune system, B lymphocytes which are producers of particular immunoglobulins against that antigen multiply and in days manufacture their antibodies. This is termed as primary response. Some of such specific B lymphocytes remain in the circulation for a big time, sometimes throughout the whole life of the individual, and they become the memory cells of immune system. Whenever the body is exposed in the future to similar antigen the production of antibodies will be quicker and more intense as the immune system is already made to react against that antigen. This is termed as the secondary response.
Are hookworm’s heteroxenous or monoxenous?
How mineral salts, water and food (sugar) are transported throughout the plant?
Give an illustration of a situation in which the neuron cell body is positioned in a part of the body and its axonal terminal part is in another distant portion of the body? Why does this take place?
Coming from acidic pH environment of stomach which is the pH level does chyme find whenever it enters the duodenum? Why is it essential in order to maintain that paricular pH level in small intestine? Which are the organs responsible for that pH level and how is it ke
How are the perceptions of DNA, gene, proteins and characteristics of living beings associated?
Define nucleic acids in brief? Describe the historic origin of this name?
Beings from four phyla of animal kingdom “breath” (do gas exchange) by the diffusion. Which are such phyla? How is this kind of respiration related to features existed in such animals?
Are bacteria the mere prokaryotic beings?
Product Lifecycle: It is a marketing theory cycle or succession of strategies experienced through every product that begins along with a product’s introduction, sometimes considers as research and development, followed through its sales growth,
List in order the steps involved in the break down of glucose
18,76,764
1942541 Asked
3,689
Active Tutors
1444075
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!