Microorganisms and Immunity Quiz

Which of the following is a natural defense mechanism of the human body against infections?

• Skin prevents entry of pathogens

• White blood cells produce antibodies

• Stomach acid neutralizes harmful microbes

• All of the Above

What is the difference between inherited and acquired immunity?

• Inherited immunity is present at birth, while acquired immunity develops after exposure to antigens.

• Inherited immunity develops after exposure to antigens, while acquired immunity is present at birth.

• Both inherited and acquired immunity are present at birth.

• Both inherited and acquired immunity develop after exposure to antigens.

What is the difference between active and passive immunity?

• Active immunity is acquired through vaccination or infection, while passive immunity is acquired through antibodies from another source.

• Active immunity is temporary, while passive immunity is long-lasting.

• Active immunity does not involve antibodies, while passive immunity does.

• Active immunity is only acquired naturally, while passive immunity is only acquired artificially.

What is the difference between non-specific and specific immunity?

• Non-specific immunity targets all pathogens indiscriminately, while specific immunity targets particular pathogens.

• Non-specific immunity is acquired over time, while specific immunity is present from birth.

• Non-specific immunity involves antibodies, while specific immunity involves physical barriers.

• Non-specific immunity is slower to respond, while specific immunity provides an immediate response.

What is the 1st line of defence?

• Skin

• White blood cells

• Antibodies

• Vaccines

What cells make up the 2nd line of defence?

• Macrophages

• Neutrophils

• Dendritic cells

• All of the above

What cells make up the 3rd line of defence?

• T cells and B cells

• Red blood cells

• Platelets

• Neutrophils

What are antigens?

• Proteins that trigger an immune response

• Cells that attack pathogens

• Molecules that inhibit immune function

• Enzymes that digest bacteria

What is the MHC?

• Major Histocompatibility Complex

• Molecular Hydrogen Compound

• Magnetic Hyperbolic Curve

• Microbial Host Cell

What makes up the 3rd line of defence?

• Physical barriers

• Inflammatory response

• Adaptive immune system

• Innate immune system