Answer:
Antibodies.
Explanation:
An antibody is a protein produced by the white blood cells of an organism to resist harmful foreign substances, so-called antigens. Once the body has done this once against an antigen, it will usually develop immunity to the disease that the antigen represents. A common vaccination method is to supply the body with small amounts of unknown antigens, thus stimulating the body to produce anti-inflammatory antibodies. In some cases, antibodies can react to harmless substances, causing an allergic reaction.
Answer:
lymphocytes
Explanation:
These cells provide efficient, specific and long-lasting immunity against microbes and are responsible for acquired immunity. Lymphocytes differentiate into three separate lines: thymic-dependent cells or T lymphocytes that operate in cellular and humoral immunity, B lymphocytes that differentiate into plasma cells to secrete antibodies, and natural killer (NK) cells. T and B lymphocytes are the only lymphoid cells that produce and express specific receptors for antigens.
T Lymphocytes: These cells are involved in the regulation of the immune response and in cell mediated immunity and help B cells to produce antibody (humoral immunity). Mature T cells express antigen-specific T cell receptors (TcR) that are clonally segregated (i.e., one cell lineage-one receptor specificity). Every mature T cell also expresses the CD3 molecule, which is associated with the TcR. In addition mature T cells display one of two accessory molecules, CD4 or CD8. The TcR/CD3 complex recognizes antigens associated with the major histocompatibility complex (MHC) molecules on target cells (e.g. virus-infected cell). The TcR is a transmembrane heterodimer composed of two polypeptide chains (usually, α and β chains). Each chain consists of a constant (C) and a variable (V) region, and are formed by a gene-sorting mechanism similar to that found in antibody formation. The repertoire is generated by combinatorial joining of variable (V), joining (J), and diversity (D) genes, and by N region (nucleotides inserted by the enzyme deoxynucleotidyl-transferase) diversification. Unlike immunoglobulin genes, genes encoding TcR do not undergo somatic mutation. Thus there is no change in the affinity of the TcR during activation, differentiation, and expansion.
How would you minimize pesticide residues and bacteria contamination in your foods?
Answer:
Thoroughly wash all produce, even that which is labeled organic and that which you plan to peel. Wash your produce under running water rather than soaking or dunking it. ... Peel fruits and vegetables when possible. Trim fat and skin from meat, poultry, and fish to minimize pesticide residue that may accumulate in the fat.
Explanation:
Answer:
Whether you eat conventional or organic food , rinse it water ti remove pesticides residue ,dirt and bacteria. Wash your product under the running water rather than soaking or drunking it.