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Immunology Past Exam 1999 - Qiurio

Immunology Past Exam 1999

Past exam at P&S from 1999, only the immunology questions







Good job! Take a look at the report below for a more detailed analysis of your performance.

Score Card

Question Your Answer Correct Answer
This chart shows the number of test-takers who scored in various ranges. Your score of XX was as good or better than XX of all test-takers. . As more people take this test you'll get a more accurate idea of your relative performance.
Your Score X%
Set Average X%
Standard Deviation X
Percentile X

Score Frequency Distribution

Number of Test Takers
Score Range (%)

Performance Trend

Score (%)
Test Number
You've taken this test before. The chart on the left shows how your performance has changed with each sitting.

It's a good idea to repeat tests in which you performed poorly. Aim to improve your performance with each sitting by taking the time to review your mistakes.

Topic Breakdown

Topic Breakdown

Topic
Percent Correct (%)
This chart shows your performance by topic.

Be sure to identify topics on which you had difficulty and give these more attention.

It's equally important to know to what extent a topic will be represented in a test.

Difficult topics that appear rarely may not represent the highest yield material to review.

Difficulty Analysis

Question Difficulty

Rank Question Answered Incorrectly
This table ranks questions by difficulty.

The more a question is answered incorrectly the more difficult it likely is.

Alternatively, it may be a poorly constructed question.

Question 1
Lymphocytes derive from
A. The liver
B. The spleen
C. The thymus
D. The bone marrow

Explanation

Question 2
Antigens that are synthesized by a cell, such as a viral protein, are presented to the immune system in conjunction with
A. None of the above
B. CD40 ligand
C. MHC-II proteins
D. MHC-I proteins

Explanation

Question 3
Which of the following is true about immunoglobulin (Ig) receptors on B cells andantigens:
A. For each unique antigen there are an infinite number of Ig receptors
B. For each unique antigen there are a number of Ig receptors
C. For each unique antigen there is one and only one Ig receptor

Explanation

Question 4
Professional antigen-presenting cells present antigen in conjunction with
A. B7
B. T cell receptor
C. MHC-II
D. MHC-I

Explanation

Question 5
T4 and T8 cells both need accessory cell-adhesion molecules to bind to the cells that are presenting antigen to them. Which combination describes the combinations of accessory molecules accurately
A. Neither
B. CD4-MHC-I; CD8-MHC-II
C. CD4-MHC-II; CD8-MHC-I

Explanation

Question 6
Which of he following is not true of plasma cells:
A. All of the above are correct
B. They are present in the bone marrow and lymphocytes
C. The are capable of secreting all the different types of antibodies
D. They synthesize an antibody that is fundamentally the same as the one manifested on the surface of the B cell from which they derived
E. They carry immunoglobulins on their surface

Explanation

Question 7
Interleukin-2 plays an important role in the immune response. It’s main function is to:
A. All of the above are the results of interleukin-2's actions
B. Activate macrophages
C. Increase the number of helper T cells that can respond to a particular antigen
D. Stimulate the differentiation of B cells into plasma cells

Explanation

Question 8
Which of the following pairs of immunoglobulins are most able to “fixing complement?”
A. IgD and IgE
B. IgD and IgM
C. IgG and IgM
D. Ig A and IgD
E. IgA and IgE

Explanation

Question 9
Activation of the complement cascade has all of the following actions except:
A. Activation of clotting
B. Chemotaxis
C. Lysis of target membrane
D. Opsonization

Explanation

Notes

Discussion

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