Understanding Human Immunity

What is the primary role of the body's immune system?

• To produce energy

• To defend against diseases and pollutants

• To digest food

• To regulate body temperature

Which of the following is NOT a part of the local defense system?

• Liver

• Hair

• Mucus

• Skin

What is the function of white blood cells in the immune system?

• To fight foreign materials and prevent infections

• To store fat

• To transport oxygen

• To produce hormones

What are antibodies?

• Hormones that regulate growth

• Enzymes that digest food

• Proteins that fight germs

• Cells that transport nutrients

How is innate immunity acquired?

• Through genetic makeup

• Through dietary supplements

• Through vaccination

• Through previous infections

Which type of immunity is developed over a lifetime?

• Non-specific immunity

• Specific immunity

• Acquired immunity

• Innate immunity

What is actively acquired immunity?

• Immunity from birth

• Immunity from dietary sources

• Resistance developed from previous infections or vaccinations

• Immunity passed from mother to child

How is passively acquired immunity obtained?

• Through exposure to antigens

• Through the introduction of readymade antibodies

• Through genetic inheritance

• Through regular exercise

What is the role of antibodies in acquired immunity?

• To produce energy

• To bind with antigens and neutralize them

• To transport oxygen

• To digest food

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

• Exposure to a virus

• Antivenin injection

• Vaccination

• Breastfeeding