Antigen: Antigens are foreign proteins that enter the host body through an infection. Antigens are generally high molecular weight proteins or polysaccharides. Viruses and bacteria contain antigen on their surface or inside the body.
Epitope: Epitope is the molecular region on the surface of the antigen which interacts with the antibody binding site on the antigen. Epitopes are capable of stimulating an immune response so, these are also known as antigenic determinants. Binding between the receptor and epitopes occurs when they both fit together like a puzzle, that event is necessary to activate B-cell production of antibodies.
Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot.
The changes in eating noted in the first study are due to fibers that are passing through the lateral hypothalamus. The lateral hypothalamus is a region of the brain with a key function of coordinating an array of cognitive and physical processes such as feeding
Researchers believe that the size difference between male and female brains results from the influence of:
gender identity
Explanation:
individual difference would only allow such as no published journals by researcher to affirm the obvious difference in the brain size of male and female
