Specific host defense (part 1)

Which type of immunity is genetically inherited and non-specific?

• Active adaptive immunity

• Innate immunity

• Artificially acquired immunity

• Passive adaptive immunity

• Humoral immunity

Which of the following is an example of artificially acquired passive immunity?

• Recovery from measles

• Breastfeeding

• Vaccination with live virus

• Injection of snake antivenom

• Contact with pathogen

Antigens are usually composed of which of the following?

• Lipids and steroids

• Carbohydrates and vitamins

• Proteins and polysaccharides

• Water and glucose

• Minerals and salts

What is the small molecule that becomes antigenic only when attached to a larger protein?

• Toxin

• Hapten

• Antibody

• Epitope

• Enzyme

The region on an antigen where an antibody binds is called:

• Constant region

• Active site

• Fab arm

• Epitope

• Fc region

Which cells produce antibodies?

• T helper cells

• Cytotoxic T cells

• B cells

• Macrophages

• Natural killer cells

The antibody titer refers to:

• The molecular weight of an antigen

• The number of lymphocytes present

• The quantity of antibody that reacts with antigen

• The number of epitopes on a pathogen

• The size of the antigen-antibody complex

B cells mature in the:

• Thymus

• Bone marrow

• Liver

• Appendix

• Blood

Which organ is equivalent to Bursa of Fabricius in birds?

• Bone marrow (humans)

• Spleen

• Liver

• Thymus

• Lymph nodes

Which type of cell is responsible for killing virus-infected or cancerous cells non-specifically?

• B cells

• T helper cells

• Cytotoxic T cells

• NK cells

• Macrophages