Immunodeficiency & Hypersensitivity Quiz

Immunodeficiency & Hypersensitivity Quiz

University

15 Qs

quiz-placeholder

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Immunodeficiency & Hypersensitivity Quiz

Immunodeficiency & Hypersensitivity Quiz

Assessment

Quiz

Science

University

Hard

Created by

Siang Yan Serene Choo

Used 5+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Immunodeficiency disease can result from ________________.

a developmental defect of T lymphocytes.

developmental defect of bone marrow stem cells.

defect in phagocyte function.

all of the options.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following are effector cells during chronic asthma?

Macrophages and neutrophils

Mast cells and eosinophils

T cells and B cells

Natural killer cells

Answer explanation

Mast cells and eosinophils are key effector cells in chronic asthma, contributing to inflammation and airway hyperreactivity. They release mediators that exacerbate asthma symptoms, making them central to the disease process.

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

HIV infected CD4+ T cells may lose the expression of_________ and this leads to killing by ______.

Class II MHC, cytotoxic T cells

Class I MHC, natural killer cells

CD4, neutrophils

CD8, macrophages

Answer explanation

HIV infected CD4+ T cells may lose the expression of Class II MHC, which is crucial for presenting antigens to CD4+ T cells. This loss makes them susceptible to killing by cytotoxic T cells, which recognize infected cells.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is/are the cardinal symptom(s) of immunodeficiency?

Chronic diarrhea

Chronic or recurrent severe infections

Poor response to treatment of infections

All of the options

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements on severe combined immune deficiency (SCID) is FALSE?

Patients do not have functional T cells

Patients do not have functional B cells.

Patients are suffering from a secondary immunodeficiency

Patients tend to have recurrent infection.

Answer explanation

The statement 'Patients are suffering from a secondary immunodeficiency' is false. SCID is a primary immunodeficiency, meaning it is due to intrinsic defects in the immune system, not acquired from external factors.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Type III hypersensitivity is also known as ________________.

Allergy

Cytotoxic hypersensitivity

Immune complex reaction

Delayed-type hypersensitivity.

Answer explanation

Type III hypersensitivity is known as an immune complex reaction, where antigen-antibody complexes form and lead to tissue damage. This distinguishes it from other types like allergy or cytotoxic hypersensitivity.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Acquired Immunodeficiency Syndrome (AIDS) is caused by a retrovirus that preferentially infects and kills _______ cells.

helper T

cytotoxic T

NK

Monocytic

Answer explanation

AIDS is caused by the Human Immunodeficiency Virus (HIV), which specifically targets and destroys helper T cells. These cells are crucial for the immune response, making their depletion central to the progression of AIDS.

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