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- Question
Lymphocytes are activated by antigen in the
Options- A. blood stream
- B. bone marrow
- C. liver
- D. lymph nodes
- Correct Answer
- lymph nodes
- 1. Antigen, when injected in the body activates its specific lymphocytes in the
Options- A. blood circulation
- B. draining lymph nodes
- C. MALT (mucosa associated
- D. spleen lymphoid tissue Discuss
- 2. The antibiotic penicillin is a small molecule that does not induce antibody formation. However, penicillin binds to serum proteins and forms a complex that in some people induces antibody formation resulting in an allergic reaction. Penicillin is therefore
Options- A. an antigen
- B. a hapten
- C. an immunogen
- D. both an antigen and a hapten Discuss
- 3. A pathogen can be a (n)
Options- A. agent that causes a disease
- B. virus
- C. bacteria
- D. All of these Discuss
- 4. For specific antigen recognition by T cells,
Options- A. antigen is bound by a T cell membrane antibody
- B. denaturation of antigen does not reduce epitope recognition
- C. MHC molecules are not required
- D. antigen exposure during T cell maturation is required Discuss
- 5. During the lag period between antigen contact and detection of adaptive immunity,
Options- A. antigen is hidden from the immune system in macrophages
- B. innate immune effectors are eliminating antigen
- C. innate immunity blocks the activation of adaptive immune effector cells
- D. new B and T cells with the appropriate antigen specificity must be produced in the bone marrow Discuss
- 6. A virus vaccine that can activate cytotoxic T cells must contain
Options- A. a high dose of virus particles
- B. an adjuvant to stimulate T cell division
- C. live virus
- D. virus peptides Discuss
- 7. Plasma cells produce thousands of __________ that are released into the bloodstream
Options- A. antigens
- B. antibodies
- C. helper T cells
- D. virus fragments Discuss
- 8. Which of the following is in the lymph nodes of a person battling a cold virus?
Options- A. Huge numbers of white blood cells
- B. Trapped viruses that have been roaming the body
- C. Lymph ducts that enter and exit the nodes and Lymph fluid
- D. All of the above Discuss
- 9. What are the solutions prepared from weakened or dead microorganisms, viruses, or toxins that provide some immunity from diseases?
Options- A. Vaccines
- B. Histamines
- C. Drugs
- D. Antibiotics Discuss
- 10. Polysaccharides on the surface of infecting microorganisms can also activate complement directly in the absence of
Options- A. antibody via the alternative pathway
- B. antigen via the alternative pathway
- C. antibody via metabolic pathway
- D. none of the above Discuss
Antigen problems
Search Results
Correct Answer: draining lymph nodes
Correct Answer: both an antigen and a hapten
Correct Answer: All of these
Correct Answer: denaturation of antigen does not reduce epitope recognition
Correct Answer: innate immune effectors are eliminating antigen
Correct Answer: live virus
Correct Answer: antibodies
Correct Answer: All of the above
Correct Answer: Vaccines
Correct Answer: antibody via the alternative pathway
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