QUESTIONS: 1. Match the description with the correct compound or process. F. Interferons B. Antibodies G. Lysozyme Antigen H. Perforin C. Complement I. Phagocytosis D. Cytokines E. Histamine J. Pyrogens __ Enzyme that digests the cell walls of many kinds of bacteria; present in some mucus secretions __ Ingestion of invading organisms by certain types of white blood cells __ Released by basophils and mast cells in response to tissue triggers dilation and increased permeability of nearby capillaries __ Molecules that set the body's thermostat at a higher temperature __ Group of 20 or more blood proteins that cooperate with other defense mechanisms;may amplify inflammation , enhance phagocytosis or lyse pathogens; activated by immune response or exposure to antigens __ Proteins produced by virus-infected cells ; induce other cells to produce chemicals that inhibit viral reproduction __ Foreign molecule that triggers a specific response by lymphocytes __ Proteins, produced by plasma cells that bind to specific antigens __ Proteins or peptides that serve to stimulate lymphocytes __ Protein that forms pores in a target cell's membrane

## Step 1<br />The problem involves matching descriptions of various biological compounds or processes with their correct names. The descriptions are related to the immune system and its responses.<br /><br />## Step 2<br />The first description talks about an enzyme that digests the cell walls of many kinds of bacteria and is present in some mucus secretions. This description matches the function of Lysozyme (G).<br /><br />## Step 3<br />The second description refers to the ingestion of invading organisms by certain types of white blood cells. This process is known as Phagocytosis (I).<br /><br />## Step 4<br />The third description talks about molecules that set the body's thermostat at a higher temperature. This is a function of Pyrogens (J).<br /><br />## Step 5<br />The fourth description refers to a group of 20 or more blood proteins that cooperate with other defense mechanisms, may amplify inflammation, enhance phagocytosis, or lyse pathogens; activated by immune response or exposure to antigens. This description matches the function of Complement (C).<br /><br />## Step 6<br />The fifth description talks about proteins produced by virus-infected cells that induce other cells to produce chemicals that inhibit viral reproduction. This is a function of Interferons (F).<br /><br />## Step 7<br />The sixth description refers to a foreign molecule that triggers a specific response by lymphocytes. This is the definition of an Antigen (A).<br /><br />## Step 8<br />The seventh description talks about proteins, produced by plasma cells that bind to specific antigens. This is a function of Antibodies (B).<br /><br />## Step 9<br />The eighth description refers to proteins or peptides that serve to stimulate lymphocytes. This is a function of Cytokines (D).<br /><br />## Step 10<br />The ninth description talks about a protein that forms pores in a target cell's membrane. This is a function of Perforin (H).