Answer:
phagocytosis
Explanation:
Phagocytosis is one of the non-specific immune responses generated by the immune system. Pathogens and microbes release several chemicals that serve to attract the specific cells of the immune system. These cells that perform phagocytosis are called phagocytes. Phagocytes recognize the chemicals released by pathogens and engulf the pathogens to kill them followed by disposal of the dead matter.
For example, neutrophils release intracellular lysozymes that kill certain bacteria, and strong oxidants such as H2O2 that kill the pathogen cells by bleaching them.
Answer:
c. Major groove
Explanation:
The interaction surfaces of proteins are, in general, varied. From the point of view of the secondary structure, the surfaces of the proteins are formed by the surfaces of their α helices, β sheets and loops that conform them. The surfaces of the DNA molecules are less varied: the B-DNA helix has a monotonous “screw” shaped surface with phosphoribose ridges between which two grooves (major and minor) are formed. The difference between different nucleotide sequences can only be seen from outside in the major groove, where the bases appear. The surfaces of RNA molecules that possess tertiary structure (such as t-RNA) are almost as complex as that of proteins.
Since the major groove is the only site where the bases are accessible from outside the B-DNA without distorting it, the major groove constitutes the main recognition site. As the interaction between molecules is stronger if their surfaces are complementary, the protein-DNA interaction usually occurs by filling the major groove.
Answer:
The shape of the enzyme determines which chemical reaction it will speed up.May strain the bonds of the substrate or put chemical groups of the active site in the correct position to speed up the reaction.
Answer:1,3,4 are the right answers just took the test
Explanation: