What is the main function of the immune system?

• Transport oxygen to cells

• Protect the body against pathogens

• Break down food into nutrients

• Regulate body temperature

Which cells are responsible for producing antibodies?

• T cells

• B cells

• Macrophages

• Neutrophils

What role do T cells play in the immune response?

• They produce antibodies.

• They destroy virus-infected cells.

• They transport oxygen.

• They digest pathogens.

What component of the immune system acts as the first line of defense?

• Antibodies

• Skin

• Memory B cells

• Plasma cells

What is described as the function of macrophages?

• Produce antibodies

• Engulf and digest pathogens

• Activate B cells

• Suppress immune responses

Which of the following is a characteristic of the adaptive immune system?

• It provides a non-specific response to pathogens.

• It has immunological memory.

• It acts as the first line of defense.

• It includes physical barriers like the skin.

What is the main function of helper T cells in the immune system?

• Directly destroy pathogens

• Activate other immune cells

• Produce antibodies

• Store antigens

During a biology class, Maya learned about the lymphatic system. Which of the following options did she discover is a function of the lymphatic system in the immune response?

• Transport oxygen to the tissues

• Filter lymph and house immune cells

• Produce hormones

• Store nutrients

In a school science project, Benjamin and Scarlett are studying how antibodies influence the behavior of immune cells. What role do antibodies play in this process?

• Attacking and directly eliminating pathogens

• Acting as signaling molecules to coordinate immune responses

• Functioning as antibodies to neutralize harmful substances

• Serving as cells that capture and store antigens

Which of the following is a component of the innate immune system?

• Antibodies

• Skin

• Memory B cells

• Plasma cells