How Much Do You Know dendritic cells?
Dendritic cells are immune cells that protect the body from foreign invasion. Just how much do you know about dendritic cells? All the questions in the quiz will test your knowledge about the human immune system and make you think. Do you think you know enough about the human immune system? If you feel so, then go ahead and give this awesome quiz a try.
Interestingly, you can play this quiz in preparation for your upcoming exams. There is no time bar on the quiz, so you can take this quiz as many times as you like. All the best!
- 1.
What is the name of the specialized dendritic cells that are found on the skin surface?
- A.
Apoptotic cells
- B.
Dendritic cells
- C.
Langerhans cell
- D.
None of the above
Correct Answer
C. Langerhans cellExplanation
Langerhans cells are specialized dendritic cells that are found on the skin surface. They play a crucial role in the immune system by capturing antigens and presenting them to T cells, initiating an immune response. Unlike other dendritic cells, Langerhans cells are unique to the skin and are named after the German physician Paul Langerhans, who first described them in 1868.Rate this question:
-
- 2.
Immature dendritic cells are also called ________________.
- A.
Veiled cells
- B.
Thin cells
- C.
Malignant cells
- D.
Young dendritic cells
Correct Answer
A. Veiled cellsExplanation
Immature dendritic cells are referred to as veiled cells. This term is used to describe their appearance, as they have long, thin extensions that cover their surface, giving them a "veiled" or "veil-like" appearance. This stage is characterized by the cells' ability to capture antigens but not yet fully activate the immune response. Once mature, dendritic cells lose their veil-like extensions and become more active in presenting antigens to other immune cells.Rate this question:
-
- 3.
Dendritic cells are derived from what type of cells?
- A.
Eosinophils
- B.
Proerythroblast
- C.
Mast cells
- D.
Hematopoietic bone marrow progenitor cells
Correct Answer
D. Hematopoietic bone marrow progenitor cellsExplanation
Dendritic cells are derived from hematopoietic bone marrow progenitor cells. Hematopoietic stem cells in the bone marrow give rise to various types of blood cells, including dendritic cells. Dendritic cells play a crucial role in the immune system, acting as antigen-presenting cells and initiating immune responses.Rate this question:
-
- 4.
Which organ produces the dendritic cells?
- A.
Bone marrow
- B.
Tonsils
- C.
Brain
- D.
None of the above
Correct Answer
A. Bone marrowExplanation
Dendritic cells are a type of immune cell that play a crucial role in initiating and regulating immune responses. They are primarily produced in the bone marrow, which is the site of hematopoiesis, the process of generating all types of blood cells including immune cells. Dendritic cells are then distributed throughout the body, where they function as antigen-presenting cells and help activate other immune cells. Tonsils and brain do not produce dendritic cells.Rate this question:
-
- 5.
Who coined the term Dendritic cells?
- A.
Jos van der Meer
- B.
Charles Dinarello
- C.
Ralph M. Steinman
- D.
Leo H. Klaassen
Correct Answer
C. Ralph M. SteinmanExplanation
Ralph M. Steinman is credited with coining the term "Dendritic cells."Rate this question:
-
- 6.
Where are the cells commonly found?
- A.
Skin surface
- B.
Linings of the nose
- C.
Gastrointestinal tract.
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Cells are commonly found in various parts of the body, including the skin surface, linings of the nose, and gastrointestinal tract. These locations are known to have a high concentration of cells due to their role in protecting the body, providing sensory functions, and aiding in digestion. Therefore, the correct answer is "All of the above."Rate this question:
-
- 7.
What was Conventional dendritic cells (cDC) previously called?
- A.
Plasma cells
- B.
Plasmacytoid dendritic cell (pDC)
- C.
Langerhans cell
- D.
Myeloid dendritic cell (mDC)
Correct Answer
D. Myeloid dendritic cell (mDC)Explanation
Conventional dendritic cells (cDC) were previously called Myeloid dendritic cells (mDC).Rate this question:
-
- 8.
When were the cells discovered?
- A.
1968
- B.
1973
- C.
1982
- D.
1992
Correct Answer
B. 1973Explanation
The cells were discovered in 1973.Rate this question:
-
- 9.
What do Conventional dendritic cells (cDC) secrete?
- A.
Interleukin 12
- B.
Interleukin 6
- C.
Chemokines
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Conventional dendritic cells (cDC) secrete various substances, including Interleukin 12, Interleukin 6, and chemokines. Interleukin 12 is a cytokine that plays a crucial role in immune responses, promoting the differentiation of T cells into Th1 cells. Interleukin 6 is another cytokine involved in immune regulation, inflammation, and hematopoiesis. Chemokines are small proteins that help in immune cell migration and recruitment to sites of infection or inflammation. Therefore, cDCs secrete all of these substances, contributing to the immune response and regulation.Rate this question:
-
- 10.
__________________________ is secreted by Plasmacytoid dendritic cells (pDC).
- A.
TNF
- B.
Interferon-α
- C.
Interleukin 12
- D.
VEGF
Correct Answer
B. Interferon-αExplanation
Interferon-alpha is secreted by Plasmacytoid dendritic cells (pDC). It is a type of cytokine that plays a critical role in the immune response against viral infections. Interferon-alpha helps to activate other immune cells, such as natural killer cells and cytotoxic T cells, to destroy virus-infected cells. It also stimulates the production of antibodies and enhances the presentation of antigens to other immune cells. Overall, Interferon-alpha is an important component of the body's defense mechanism against viral pathogens.Rate this question:
-
Back to top