Grade 8 Immune System Quiz

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Questions and Answers

Which cells are responsible for producing antibodies in the immune system?

  • T cells
  • Macrophages
  • Natural killer cells
  • B cells (correct)

What is the primary function of T cells in the immune system?

  • Initiating the inflammatory response
  • Clearing cellular debris
  • Recognizing and killing infected cells (correct)
  • Producing antibodies

Which cells are responsible for producing antibodies in the immune system?

  • Natural killer cells
  • B cells (correct)
  • Macrophages
  • T cells

Which organ is the primary site for the production of T cells in the body?

<p>Thymus (D)</p> Signup and view all the answers

What is the role of the thymus in the immune system?

<p>Maturation of T cells (D)</p> Signup and view all the answers

Which cells are responsible for engulfing and digesting pathogens in the immune system?

<p>Macrophages (B)</p> Signup and view all the answers

Which of the following is a primary lymphoid organ in the immune system?

<p>Bone marrow (A)</p> Signup and view all the answers

Which type of immunity is acquired through vaccination or from exposure to an infectious agent?

<p>Active immunity (D)</p> Signup and view all the answers

Which of the following is a function of the lymphatic system in the immune system?

<p>Draining excess tissue fluid (A)</p> Signup and view all the answers

What is the primary function of the immune system?

<p>To protect the body from harmful pathogens (A)</p> Signup and view all the answers

Which cells are responsible for producing antibodies in the immune system?

<p>B cells (C)</p> Signup and view all the answers

What is the role of the thymus gland in the immune system?

<p>Producing T cells (C)</p> Signup and view all the answers

Flashcards

What are B cells?

Lymphocytes that produce antibodies to neutralize pathogens.

What is the primary function of T cells?

Mature in the thymus and kill infected cells.

What is the thymus?

The primary site for T cell maturation.

What is the role of macrophages?

To engulf and digest pathogens.

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What is the role of bone marrow?

It produces blood cells, including immune cells.

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What is active immunity?

Immunity developed after exposure to an antigen.

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What is the primary function of the immune system?

To protect the body from harmful pathogens.

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What is a function of the lymphatic system?

Drains excess fluid and patrols for pathogens.

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Study Notes

Immune System Cells

  • B cells are responsible for producing antibodies in the immune system.
  • T cells are responsible for cell-mediated immunity, which involves direct killing of infected cells or activation of other immune cells.

Lymphoid Organs

  • The thymus is the primary site for the production and maturation of T cells in the body.
  • The thymus is a primary lymphoid organ in the immune system.

Immune System Functions

  • Phagocytic cells, such as neutrophils and macrophages, are responsible for engulfing and digesting pathogens in the immune system.
  • The lymphatic system plays a crucial role in the immune system by helping to defend the body against disease-causing agents.

Immunity and Immune Response

  • Adaptive immunity can be acquired through vaccination or exposure to an infectious agent, allowing the immune system to remember and respond to specific pathogens.
  • The primary function of the immune system is to protect the body against disease-causing agents, such as pathogens, and to maintain homeostasis.

Thymus Gland

  • The thymus gland plays a crucial role in the immune system by producing and maturing T cells, which are essential for cell-mediated immunity.

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