Which of the following statements best describes the role of MHC molecules?

A cell is immersed in a solution, the cell shrinks.  The solution is ________.

During the alternative pathway of complement fixation, which of the following steps occurs first?

The region between the shoulder and the elbow is the _________ region.

Which of the following events are induced by cytokines? Choose all that apply.

Use the answer bank below. Answers can be used more than once.                                         Imagine yourself working in the Emergency Department at UCSD hospital in Hillcrest. You have a gunshot wound patient who has lost a lot of blood. When he arrives his blood pressure is: 80/40 mmHg (this is low). While the tests are being done to figure out his blood type what can you do to correct the blood pressure problem? (30). The blood test results come back and you find out his blood type is A+. The antigen/s on his red blood cells is/are: (31: enter them all no commas or periods or spaces, using the table below); The antibody/ies in his blood is/are: (32: enter them all no commas or periods or spaces, use the table below). What are 2 blood types that he can safely receive: (33: enter them both no commas or periods or spaces, use the table below)? What is 1 blood type he cannot safely receive: (34, use the table below)? What would happen if you gave him this unsafe blood type: (35)? A. Give him an isosmotic solution F. Rh antigens K. Type A- P. Type O+ U. The antibodies from the donated blood would stick to the antibodies in his blood B. Give him a hyperosmotic solution G. Anti A L. Type B+ Q. Type O- V. The antibodies on his red blood cells would stick to the antigens on the donated red blood cells C. Give him a hyposmotic solution H. Anti B M. Type B- R. The antibodies in his blood would stick to the antigens on the donated red blood cells   D. A antigens I. Anti Rh N. Type AB+ S. The antibodies from the donated blood would stick to the antigens on his red blood cells   E. B antigens J. Type A+ O. Type AB- T. The antigens on his red blood cells would stick to the antigens on the donated red blood cells  

BONUS: Give two physical methods of microbial control you use everyday in your home.

Observe your camera set up on the top right hand side of your screen. It is supposed to look like this image. Make sure your set up is adjusted to look like it 1. Side camera angle clearly shows all of your work surface 2. Lightening is correct 3. Hands are not blocking camera 4. Hair tied back  Is your set up correct and you can continue.  Answer true and continue, if false check set up and rules in exam at start of exam and correct it.

According to Skinner:

Mitosis.  Which of the following describes metaphase?                                            1. division of cytoplasm occurs. 2. sister chromatids are pulled apart. 3. nuclear envelope breaks down. 4. chromosomes align at the equator. 5. nuclear envelope starts to reform.