Pathogens and Human Diseases

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Questions and Answers

Which tissue is considered the primary immune tissue and is responsible for the differentiation of immune cells?

  • Bone marrow (correct)
  • Thymus
  • Lymph nodes
  • Spleen

Where do T-cells differentiate or mature after leaving the bone marrow?

  • Thymus (correct)
  • Bone marrow
  • Lymph nodes
  • Spleen

Which organ is the largest in the lymph system and plays a supporting role in the body, including acting as a blood filter and fighting infection?

  • Spleen (correct)
  • Thymus
  • Bone marrow
  • Lymph nodes

What is the main function of lymph nodes in the immune system?

<p>To fight infection (A)</p> Signup and view all the answers

What are external agents that can potentially cause harm to the body known as?

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

Which of the following best defines immunology?

<p>The study of how organisms protect themselves (C)</p> Signup and view all the answers

Which section of the course provides an overview of the immune system?

<p>Section 1 (A)</p> Signup and view all the answers

What is the main focus of Section 2 of the course?

<p>The basics of disease (B)</p> Signup and view all the answers

Which of the following is NOT a tissue of the immune system?

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

What are the key functions of the immune system?

<p>Attacking diseases and protecting the body (A)</p> Signup and view all the answers

Which of the following is NOT a pathogen?

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

Which of the following is an example of a disease caused by bacteria?

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

Which part of the immune system protects against all pathogens and forms the first line of defense?

<p>Innate immune system (D)</p> Signup and view all the answers

Which immune system recognizes specific pathogens?

<p>Specific immune system (D)</p> Signup and view all the answers

During which phase of the immune response do cells of the non-specific immune system become activated?

<p>Phase 2 (D)</p> Signup and view all the answers

Which of the following best describes the role of the biopharma industry in relation to immunology?

<p>The biopharma industry studies the immune system to develop immune-based products for various purposes. (C)</p> Signup and view all the answers

Which of the following is NOT part of the immune system?

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

What is the key function of the immune system?

<p>To protect from both nonself and self-agents (D)</p> Signup and view all the answers

What is a pathogen?

<p>A non-self agent that causes disease (B)</p> Signup and view all the answers

Which of the following best describes pathogenic diseases?

<p>Pathogenic diseases are communicable diseases caused by an agent. (B)</p> Signup and view all the answers

Which cell type plays a key role in the memory aspect of immunology?

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

Which cell type is responsible for secreting antibodies?

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

Which cell type kills tumor cells and virally infected cells?

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

Which cell type creates signaling molecules known as cytokines?

<p>Helper T-cells (B)</p> Signup and view all the answers

Which cell type engulfs pathogens and activates T-cells?

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

Which type of immune cell is the most abundant in the bloodstream?

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

What is the main role of eosinophils?

<p>To secrete cytotoxins that kill pathogens (B)</p> Signup and view all the answers

Where are macrophages usually found?

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

What is the role of dendritic cells in the immune system?

<p>To process and present pathogen pieces to T-cells (D)</p> Signup and view all the answers

What is the function of hematopoietic stem cells (HSCs)?

<p>To differentiate into mature immune cells (A)</p> Signup and view all the answers

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