S07#3 - BS Exam 3A Spring 2007 CSU ID # 1. Which of the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
BS Exam 3A Spring 2007 CSU ID # 1. Which of the following formed elements would have MHC II (Major Histocompatibility Complex II) protein on its surface; a. erythrocytes b. platelets c. T-lymphocytes d. macrophages e.basophils 2. Which of the following comprises more than half of the blood volume? a. The buffy coat. b. Erythrocytes c. Leukocytes d. Plasma e. a and d are correct. 3. Which one of the following formed elements is capable of synthesizing membrane proteins? a. Erythrocytes b. Platelets c. Macrophages d. Plasma B cells e. c and d are correct. 4. In the tissues where the oxygen tension is low, oxygen (Oj) is released from the in . a. iron, hemoglobin b. globin, the al hemoglobin chain c. nitrogen, the heme group d. the amino acid serine, |3i and P2 hemoglobin chains . e. None of the above; oxygen is not released when oxygen tension is low. 5. After blood is separated by centrifugation, most of the proteins in solution are found in the: a. plasma. b. buffy coat. c. hematocrit. d. erythrocyte layer e. c and d are correct. 6. In the production of lymph, the force that causes the net movement of fluid out of the blood is the: a. osmotic pressure b. hydrostatic pressure c. diffusion of water out of the blood. d. diffusion of protein out of the blood. e. All of the above are correct. 7. Among the lymphatic tissues, lymph nodes are the only ones that contain: a. T lymphocytes. b. blood c. monocytes. d. leukocytes. e. lymph
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
BS300 Exam 3 April 4, 2007 14. In the accompanying diagram, T helper cells signal memory B cells to divide at . a. a b. b c. c d. d e. e !.«• i- r H 21 28 35 42 49 56 Time (days) 15. A T killer cell releases its hold on the somatic cell and leaves the somatic cell unaffected when: a. its T cell receptor recognizes the protein fragment displayed on the MHC I complex. b. it releases interleukin 2. . c. its T cell receptor fails to recognize the protein fragment displayed on the MHC I complex. d. it releases perforins. e. c and d are correct. 16. Which of the following cell types express MCH I proteins? a. T helper cells b. Cytotoxic T killer cells c. Neutrophils d. Macrophages e. All of the above 17. The primary immune response in the humoral branch of the immune system is initiated when a: a. T helper cell binds to a memory B cell and recognizes a foreign protein fragment in the MHC II complex. b. naive B cell binds antigen. c. memory B cell binds antigen. d. T helper cell binds intact antigen in the lymph. e. secreting plasma B cell binds antigen. 18. The CD4 on a T helper cell binds to from the T helper cell and causes the _ on the target cell, which leads to the release of of the target cell. a. MHC II, interleukins, proliferation b. MHC II, perform, death c. MHC II, perform, proliferation d. MHC I, interleukins, proliferation e. MHC I, perform, death 19. For both T helper cells and cytotoxic T killer cells, the T cell receptor must a. bind specifically to whole antigen. b.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

S07#3 - BS Exam 3A Spring 2007 CSU ID # 1. Which of the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online