Active and Passive Immunity

The video tutorial explains acquired immunity, which includes active and passive immunity. Active immunity involves the body's response to an antigen, either naturally or artificially, such as through vaccination. It is slow to develop but long-lasting. Passive immunity involves receiving antibodies from another source, either naturally, like from a mother to her infant, or artificially, such as through medical treatments. Passive immunity provides immediate but short-term protection.

What is the main difference between active and passive immunity?

• Active immunity is developed through exposure to antigens.

• Passive immunity is long-lasting and slow to develop.

• Passive immunity is developed through exposure to antigens.

• Active immunity involves the direct introduction of antibodies.

How is naturally acquired active immunity developed?

• Through the introduction of antigens without contracting the disease.

• By contracting a disease and developing antibodies.

• Through vaccinations and immunizations.

• By receiving antibodies from an external source.

What is the principle behind vaccinations?

• To provide immediate but short-term immunity.

• To introduce antibodies directly into the body.

• To expose the body to antigens without causing disease.

• To transfer antibodies from mother to child.

How do newborns acquire naturally acquired passive immunity?

• By developing their own antibodies.

• Through antibodies passed from the mother.

• By contracting diseases early in life.

• Through vaccinations.

What is the role of colostrum in passive immunity?

• It provides long-term immunity to the infant.

• It contains antibodies that protect the newborn temporarily.

• It introduces antigens to the infant.

• It helps the infant develop its own antibodies.

In what situation is artificially acquired passive immunity used?

• To expose the body to antigens without causing disease.

• To treat acute infections and poisoning.

• To provide long-lasting immunity.

• To develop memory cells against antigens.

What is a potential issue with passive immunity?

• It may cause the immune system to attack introduced antibodies.

• It provides long-term protection.

• It requires exposure to antigens.

• It is slow to develop.