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- Question
Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?
Options- A. This diversity is generated from 108 different immunoglobin genes
- B. Many of these molecules are self-antigens
- C. Most of these antibodies recognize proteins
- D. Most of these antibodies recognize small organic molecules
- Correct Answer
- Most of these antibodies recognize proteins
- 1. Papain digest IgG into
Options- A. two Fab fragments and one Fc fragment
- B. three Fab fragments and two Fc fragments
- C. two Fab fragments and two Fc fragments
- D. three Fab fragments and three Fc fragments Discuss
- 2. Each IgA antibody molecule consists of
Options- A. four polypeptide chain and has two antigen binding site
- B. two polypeptide chain and has one antigen binding site
- C. three polypeptide chain and has two antigen binding site
- D. two polypeptide chain and has two antigen binding site Discuss
- 3. Which of the following are responsible for immune specificity?
Options- A. Antigens
- B. Antibodies
- C. T lymphocytes
- D. Macrophage Discuss
- 4. Which of those immunoglobulin classes is mainly found in external secretions?
Options- A. Ig A
- B. Ig D
- C. Ig M
- D. IgE Discuss
- 5. Fab fragment has
Options- A. one antigen binding site
- B. two antigen binding site
- C. one antibody binding site
- D. two antibody binding site Discuss
- 6. A polyclonal antibody response
Options- A. is produced only in response to polymeric antigens
- B. is produced by several B cells recognizing different pitopes on the same antigen
- C. occurs during the lag phase of the immune response
- D. violates clonal selection Discuss
- 7. The immunoglobulin fold is
Options- A. found only in IgG molecules
- B. a ?-barrel composed of a three- and a four-stranded antiparallel ?-sheet
- C. both (a) and (b)
- D. found six times in the IgG molecule Discuss
- 8. The main function of antibodies is to
Options- A. kill all the foreign bodies
- B. generate antigens, thus conferring immunization
- C. protect the circulatory system
- D. chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease Discuss
- 9. IgE provides
Options- A. immunity against some parasites
- B. complement killings of the cells and phagocytosis
- C. secretions in the body
- D. all of the above Discuss
- 10. Alum is an effective adjuvant because it
Options- A. disaggregates the antigen.
- B. is immunogenic for stem cells
- C. is immunogenic for T cells
- D. slows the release of antigen Discuss
Anti Bodies problems
Search Results
Correct Answer: two Fab fragments and one Fc fragment
Correct Answer: four polypeptide chain and has two antigen binding site
Correct Answer: Antibodies
Correct Answer: Ig A
Correct Answer: one antigen binding site
Correct Answer: is produced by several B cells recognizing different pitopes on the same antigen
Correct Answer: a ?-barrel composed of a three- and a four-stranded antiparallel ?-sheet
Correct Answer: chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
Correct Answer: immunity against some parasites
Correct Answer: is immunogenic for T cells
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