MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The protein, produced by B cells that binds to a specific antigen is |
| A. | phagocyte |
| B. | leukocyte |
| C. | vaccine |
| D. | antibody |
| Answer» E. | |
| 2. |
Which of these is part of the lymphoid system in humans? |
| A. | Liver |
| B. | Stomach |
| C. | Tonsils |
| D. | Kidneys |
| Answer» D. Kidneys | |
| 3. |
Which of the following characteristics are common in lymphocytes, macrophages, and neutrophils? |
| A. | They are all part of the nonspecific immune response in vertebrates |
| B. | They are all part of the specific immune response in vertebrates |
| C. | They are all part of the internal defenses of nonvertebrates |
| D. | They are all types of white blood cells |
| Answer» E. | |
| 4. |
Which of the following blood proteins can destroy pathogens? |
| A. | Major histocompatibility complex |
| B. | Platelets |
| C. | Fibrinogen |
| D. | Complement system |
| Answer» E. | |
| 5. |
What type of B cell is like a tiny factory that produces antibodies identical to the B cell receptor that bind to the original antigen? |
| A. | T cells |
| B. | Memory cells |
| C. | Plasma cells |
| D. | Macrophages |
| Answer» D. Macrophages | |
| 6. |
What type of B cell remains dormant in the body, but can respond rapidly if the same antigen appears again? |
| A. | T cells |
| B. | Memory cells |
| C. | Plasma cells |
| D. | Macrophages |
| Answer» C. Plasma cells | |
| 7. |
What is the result of invasion of a body by pathogens? |
| A. | Infection |
| B. | Inflammation |
| C. | Swelling |
| D. | Pus |
| Answer» B. Inflammation | |
| 8. |
What is the behavior in which T cells and B cells constantly travel throughout the body seeking out and destroying foreign substances? |
| A. | Antibody-mediated immune response |
| B. | Immune surveillance |
| C. | Cell-mediated immune response |
| D. | Vaccination |
| Answer» C. Cell-mediated immune response | |
| 9. |
Which of the following produces the antibodies employed in the specific immune response of vertebrates? |
| A. | B lymphocytes |
| B. | T lymphocytes |
| C. | Neutrophils |
| D. | Macrophages |
| Answer» B. T lymphocytes | |
| 10. |
Which of the following is not part of the vertebrate immune system? |
| A. | Lymphocytes |
| B. | Antibodies |
| C. | Cardiac glycosides |
| D. | Lymph nodes |
| Answer» D. Lymph nodes | |
| 11. |
The maturation of T cells and the production of particular T cell receptors occurs in the |
| A. | thyroid gland |
| B. | thymus gland |
| C. | testes |
| D. | all of these |
| Answer» C. testes | |
| 12. |
Which of the following provide specific defense against viruses and bacteria? |
| A. | T cells |
| B. | B cells |
| C. | Complement |
| D. | inflammation |
| Answer» C. Complement | |
| 13. |
In animals, blood clots serve the function of |
| A. | consuming invading organisms |
| B. | helping them match the background coloration of the habitat |
| C. | stimulating production of killer T lymphocytes |
| D. | repairing damage to the body wall |
| Answer» E. | |
| 14. |
Lack of reaction to our own human leukocyte antigens (HLAs) is known as? |
| A. | autoimmunity |
| B. | complement system |
| C. | clonal selection |
| D. | tolerance |
| Answer» E. | |
| 15. |
Which of the following components of the vertebrate immune response occurs first upon invasion by a virus or bacterium? |
| A. | Activation of killer T lymphocytes |
| B. | Activation of B lymphocytes |
| C. | The inflammatory response |
| D. | Mobilization of complement proteins |
| Answer» D. Mobilization of complement proteins | |
| 16. |
Which of the following white blood cells act as scavengers when they engulf and digest pathogens? |
| A. | Macrophages |
| B. | T cells |
| C. | B cells |
| D. | Lymphocytes |
| Answer» B. T cells | |
| 17. |
A cell which defends against body cells in which viruses are reproducing is |
| A. | Exotoxin |
| B. | Cytotoxic T cell |
| C. | Endotoxin |
| D. | Suppressor T cell |
| Answer» C. Endotoxin | |
| 18. |
Which of these is a type of specific defense against pathogens? |
| A. | Lymphocytes |
| B. | Macrophages |
| C. | Phagocytes |
| D. | Leukocytes |
| Answer» B. Macrophages | |
| 19. |
In a fetus, where are lymphocytes produced? |
| A. | In the spleen |
| B. | In the bone marrow |
| C. | In the liver |
| D. | In the heart |
| Answer» D. In the heart | |
| 20. |
Which of the following is most likely to produce anaphylaxis in a susceptible individual? |
| A. | Pollen |
| B. | Mold |
| C. | Dust |
| D. | Bee sting |
| Answer» E. | |