Understanding Vaccines and Immune Response

What is the primary purpose of a vaccine?

• To stimulate the immune system to create a memory response

• To replace the immune system

• To directly kill viruses

• To provide immediate relief from symptoms

Which part of the immune system acts as the first line of defense?

• Central nervous system

• Innate immune system

• Endocrine system

• Adaptive immune system

What triggers the symptoms like fever or muscle aches during an immune response?

• The digestive system

• The nervous system

• The innate immune response

• The adaptive immune response

What is the role of B cells in the adaptive immune response?

• To destroy infected cells

• To produce antibodies

• To act as a barrier against viruses

• To transport nutrients

What is the role of killer T cells?

• To help B cells

• To produce antibodies

• To hunt down and kill infected cells

• To transport oxygen

What are the two main components of vaccines?

• Adjuvants and antigens

• Carbohydrates and fats

• Antigens and antibodies

• Proteins and lipids

What is the function of adjuvants in vaccines?

• To act as a preservative

• To directly attack viruses

• To stimulate the innate immune response

• To provide nutrients to cells

How do memory cells contribute to long-term immunity?

• By continuously producing antibodies

• By remaining inactive until re-exposure to the virus

• By replacing damaged cells

• By causing inflammation

What happens to most T cells and B cells after an infection is cleared?

• They become memory cells

• They die off

• They transform into red blood cells

• They remain active indefinitely

What is the difference between a naive cell and a memory cell?

• Naive cells are faster than memory cells

• Memory cells respond more quickly and strongly

• Memory cells are only present in children

• Naive cells are more effective at fighting infections