Immunology Quiz

What is the process by which living organisms recognize, respond and interact with foreign antigens to protect against infection and disease?

• Hematology

• Immunology

• Serology

• Oncology

Which of the following is defined as any substance capable of producing an immune response?

• Pathogen

• Antibody

• Toxin

• Antigen

Which type of immunity involves the body producing specific antibodies that unite with the antigen to neutralize it?

• Specific Immunity

• Innate Immunity

• Natural Immunity

• Non-specific Immunity

What are the functions of the immune system? I. Prevent invasion of microorganisms II. Destroy invaded organisms III. Eliminate tumor cells

• I and II only

• II and III only

• I and III only

• I, II, and III

Which factor affects non-specific (natural, inborn) immunity by increasing susceptibility in young children and the elderly?

• Nutrition

• Stress

• Exercise

• Age

Which of the following is considered as the 'first line of defense' in the body's natural defenses against foreign invaders?

• Complement

• Lymphocytes

• Granulocytes

• Mucous membranes

Which cells are involved in natural immunity and function in chemotaxis by 'notifying' T lymphocytes of the arrival of a new antigen?

• Monocytes

• Basophils

• Eosinophils

• Neutrophils

Which of the following is an example of a body fluid secretion that contains antibacterial, antiviral, and anti-tumor enzymes and proteins?

• Urine

• Tears

• Saliva

• Sweat

Which class of immunoglobulin is the only one that can cross the placental barrier?

• IgE

• IgG

• IgA

• IgM

What is the function of antibodies in facilitating phagocytosis?

• Opsonization

• Facilitate viral replication

• Destroy bacterial cells

• Neutralize toxins