4.1.12 Types of Immunity

Question 1

What is active immunity?

Answer 1

• When antigens enter body triggering immune response
• Naturally (infection)
• Artificially (vaccine)
• Memory cells produced

Question 2

What is passive immunity?

Answer 2

• Antibodies not produced
• No memory cells
• Artificial (injection of antibodies)
• Natural (antibodies received across placenta or breast milk)

Question 3

Table comparing active and passive immunity

Answer 3