Immunology Test

0 votes, 0 avg

You will have 60 minutes to complete all the questions. After the timer reaches 60 minutes, the exam will end and be saved automatically. Good luck! *Fingers crossed*

The timer has been reached. The exam has now been terminated and saved.

Immunology Test

1 / 60

The percentage of TH cell among lymphocytes is?:

a. 46%

b. 23%

c. 19%

d. 7%

2 / 60

Which of the following bacteriocidal mechanisms is oxygen dependant?:

a. Hydrolytic enzymes

b. Lactoferrin

c. NADPH oxidation

d. Defensins

3 / 60

Cytokines are produced by cells of the immune system in response to various antigen,
EXCEPT:

a. Opsonization antigen

b. Cause histamine release

c. Activate cell function

d. Facilitate cell lysis

4 / 60

In acute infection of Hepatitis B, the typical serologic course are:

a. HBsAg

b. HBcAb

c. HBsAb

d. HBcAg

5 / 60

The rabic vaccin is used to?:

a. Prevent rabie infection

b. Cure rabie infection

c. Cure tetanus infection

d. Prevent tetanus infection

6 / 60

The following statements are true for Antibodies:

a. Contain no carbohydrate

b. Are made from alpha and beta chains

c. Are carbohydrates

d. Contain heavy and light chains

7 / 60

Which lymphocyte response to HBV infectin?:

a. B cells

b. Macrophage

c. Tc

d. Th

8 / 60

Which of the following immunoglobulin can across placenta with the highest concentration?:

a. IgG2

b. IgG1

c. IgG3

d. IgG4

9 / 60

Individuals unable to make the C4b would be expected to have frequent infections of the :

a. Liver disease

b. Thalassemia

c. Bacteria

d. Diabetis

10 / 60

Which of the following immunoglobulin is first synthesized in an immune system to response
an pathogen?:

a. IgA

b. IgG

c. IgM

d. IgE

11 / 60

In chronic infection of hepatitis B, the antigen persists in the whole life are?:

a. HBsAg

b. HBeAg

c. HBcAg

d. All answers

12 / 60

The following vaccines is used after exposure?:

a. Tetanus

b. TB

c. Hypogammaglobulinemia

d. Varicella

13 / 60

Which kind of cells worked in innate immune system and response to the tumor cells?:

a. NK cells

b. B cells

c. T cells

d. Macropages

14 / 60

The following statements are true for Antibodies, EXCEPT:

a. Composed of variable and constant regions

b. Made of heavy and light chains

c. They have hypervariable region

d. Non immunogen

15 / 60

Histamine is secreted by:

a. Red blood cells

b. White blood cells

c. Epithelial cell

d. Mast cells

16 / 60

The following answer is Super antigen:

a. Virus

b. Staphylococus toxin

c. Mycose

d. HIV

17 / 60

The Complement that produce anaphylactic much more potent is:

a. C5a

b. C2b

c. C3a

d. C4a

18 / 60

The natural passive immunity are characterized by?:

a. Placental transfert

b. Immunoglobulins

c. Kill vaccin Immune cell

19 / 60

The major role of the complement system is to work in conjunction with:

a. Antibodies to opsonize cells

b. MHC for cell recognition

c. Antibodies to lyse cells via the C8 and C9 components

d. T-cell receptor for production of lymphokines

20 / 60

Which part of antibody lack of constant domain:

a. CL and CH

b. CH

c. VL

d. CL

21 / 60

The following statements are true for Class I MHC molecules, EXCEPT :

a. Recognized by the CD8

b. Tc cells kill an infected cells

c. On the APC cells membrane

d. Participated in Th function

22 / 60

The function of MHC class II is:

a. Recognized by the CD8

b. Recognized by CD4

c. Unable to carry antigen fragment

d. Presentation Ag to Th cell

23 / 60

The function of major histocompatibility complex for antigen in the cytosol is:

a. Presentation antigen to Th-cells

b. Presentation antigen to Tc-cells

c. Bind complement for cell lysis

d. Transport protein

24 / 60

The cancer of T cells are called?:

a. All answers

b. Extranodal T cell lymphoma

c. Hodgkin lymphoma

d. Non-Hodgkin lymphoma

25 / 60

The following answer is the function of IgG, EXCEPT :

a. Opsonize bacteries

b. Cross placenta

c. Activate complement

d. Primary response to antigen

26 / 60

The receptor BCR for an antigen on the membrane of B cell is?:

a. Monovalent

b. Bivalent

c. Trivalent

d. None about

27 / 60

In a chronic infection of Hepatitis B, the typical serologic course are :

a. HBsAg and HBcAb

b. HBsAg

c. HBcAb

d. HBsAb

28 / 60

Humoral immunity consists of:

a. Normal cells

b. Pathological cells

c. Immunoglobulins

d. Cytotoxic cells

29 / 60

The following answers are true for IgM antibodies, EXCEPT:

a. Anti infectious

b. Pentametric form

c. Cause of allergy

d. Fix complement

30 / 60

Which of the following is NOT a structural chain in class I MHC?:

a. α1

b. α2

c. β1

d. β2 –microglobin

31 / 60

Immediate hypersensitivity reactions are below, EXCEPT:

a. Result from histamine release

b. Phagocytosis

c. The consequence of antigen-antibody reactions

d. If the antigen is an allergen

32 / 60

The family of Hepatitis B virus is named:

a. Hepadnavirus

b. Retrovirus

c. CMV

d. Flavivirus

33 / 60

Clinical abnormalities of the Immune system can result from the activities below:

a. T cell secrete cytokine

b. Plasma cells secrete antibody

c. Abnormal lymphocyte proliferation

d. Neutrophils kill bacteria

34 / 60

Which antigen is direct presented to B cell?:

a. Non self- antigen

b. T- Independent antigen

c. Self- antigen

d. T- dependent antigen

35 / 60

The answers below are characteristic of antigen, EXCEPT:

a. Contain epitopes

b. React with antibody

c. Are toxin

d. Contain paratopes

36 / 60

The function of major histocompatibility complex is:

a. Bind epitope for presentation to T-cells

b. Bind complement for cell lysis

c. Bind antibody for cytokine secretion

d. Degrade T4 and T8 polypeptides

37 / 60

The family of hepatitis C virus is?:

a. Ribovirus

b. Hepanavirus

c. Rotavirus

d. Flavivirus

38 / 60

How many serotypes of HCV in the world?:

a. Many

b. 6

c. 4

d. 2

39 / 60

Which of the following immunoglobulins is present normally in plasma at the highest concentration?:

a. IgG

b. IgM

c. IgE

d. IgA

40 / 60

These cells can be infected by Mycobacterium tuberculosis:

a. Eosinophil

b. Neutrophil

c. Macrophage

d. Lymphocyte

41 / 60

The component of immune system that can cause inflammation is :

a. T lymphocytes

b. Immunoglobulin

c. Macrophage

d. Complement

42 / 60

The function of Natural Killer cell is:

a. Kill pathogen

b. Damaged the target cell membrane

c. Response to bacteria infection

d. Response to antibody

43 / 60

The following immunoglobulin is used to produe vaccine?:

a. IgM

b. IgA

c. IgG

d. IgG4

44 / 60

The following vaccines is not used in United State?:

a. Hepatitis A

b. Varicella

c. Polio

d. Tuberculsis

45 / 60

Which of the following virus is NOT transmitted through the parenteral route?:

a. Hepatitis D

b. Hepatitis B

c. Hepatitis C

d. Hepatitis A

46 / 60

Class II MHC proteins are :

a. Recognized by CD4

b. Recognized by CD4 and Used to participate in helper function

c. Recognized by CD8

d. Used to participate in helper function

47 / 60

Which of the following is NOT true of interleukins:

a. They are able to bind antigen with a high level of specificity

b. They are in need of receptors on the target cell in order to mediate their effects.

c. They are cytokines which can be produced by various cells of the immune system.

d. They are hormones which allow one cell to communicate with another cell.

48 / 60

Which immunoglobulin is used to produce vaccine:

a. IgA

b. IgM

c. IgE

d. IgG

49 / 60

T cells secreted cytokine to activate T cells neighbering, This phenomen is called?:

a. Autocrine

b. Paracrine

c. None about

d. Endocrine

50 / 60

T- independent antigen presented to the following lymphocyte?:

a. B cells

b. Tc cells

c. TH cells

d. TH1 cell

51 / 60

The first immunoglobulin secreted by B cells to make up memory cells is?:

a. IgG

b. IgA

c. IgD

d. IgM

52 / 60

The following receptor is for T cells?:

a. Scavenger receptor

b. BCR

c. Toll like receptor

d. TCR

53 / 60

The following statements are true for Class III MHC molecules, EXCEPT :

a. On the APC cells membrane

b. Recognized by the CD8

c. Tc cells kill an infected cells

d. Transport protein

54 / 60

The function of T cytotoxic lymphocyte is?:

a. Lyse bacterie

b. Lyse target cell

c. Lyse paasite

d. Lyse pathogen

55 / 60

T cells secreted cytokine to activate cells in blood vessel, This phenomen is called:

a. Endocrine

b. All answers

c. Autocine

d. Paracrine

56 / 60

All of the following are true, EXCEPT:

a. An epitope is a portion of an antigen

b. IgM antibody is pentamer

c. The variable contain the antigen recognition site

d. IgG antibody is pentavalent

57 / 60

The disease below can cause by autoimmune:

a. SLE

b. Cancer

c. Thalassemia

d. Hepatitis

58 / 60

The following activities are belong to the B-cells :

a. Receptor antigen monovalent

b. Act as antigen-processing cells

c. Differentiate into plasma cells

d. Antibodies response to antigens

59 / 60

The following viral hepatitis are chronic hepatitis, EXCEPT?:

a. Hepatitis A

b. Hepatitis B

c. Hepatitis D

d. Heepatitis C

60 / 60

The following disease is the cancer of lymphocyte?:

a. Listeria

b. Mycobacterium

c. Non-Hodgkin lymphoma

d. Lymphocytopenia

Your score is

The average score is 0%

Any comments?

Any problems/errors or mistakes found while testing, please let us know for modification!

និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត