If the hemoglobin molecules in your red blood cells suddenly were unable to bind carbon dioxide and hydrogen ions, what would happen to your blood pH?
A) It would increase.
B) It would stay the same.
C) It would decrease.
Answer: C
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What is the name of the response to an injury in which fluids leak from dilated blood vessels, causing redness and swelling?
A. Innate response B. Lymphatic response C. Clonal selection response D. Inflammatory response
A number of different types of microscopy exist. Each type of microscopy has advantages and disadvantages. Can you identify the microscope that would be most advantageous for the situations below?
a. A cell biologist wishes to visualize the ribosomes of a cell. b. A microbiologist wishes to examine the motility of a bacterium. c. An immunologist wishes to determine if a lymphocyte possesses a certain surface protein. d. A virologist is trying to determine the three-dimensional shape of a virus. e. A pathologist is trying to examine the cytoplasm of a cell for changes that result from viral infection. What will be an ideal response?
Tapeworm(s):
A. have a tubelike digestive system. B. have a closed circulatory system. C. bodies consist of hundreds of reproductive segments. D. have a well developed sensory system to find vertebrate hosts. E. life cycles are simple and completed in their vertebrate hosts.
Microbes sometimes make metals such as mercury more volatile and lipid soluble by ________.
A. aggregation B. phosphorylation C. methylation D. None of the choices are correct.