Patients developed inflammation a few hours following eye surgery. Instruments and solutions were sterile, and the Limulus assay was positive. The patients' inflammation was due to
A) bacterial infection.
B) viral infection.
C) endotoxin.
D) exotoxin.
E) The answer cannot be determined based on the information provided.
C
You might also like to view...
What makes phospholipids good at forming cellular membranes?
A. Regions of aliphatic and hydrophilic atoms causing an internalization of phosphorous making a bilayer. B. The polar and non-polar regions create an amphipathic bilayer of phospholipids. C. Covalent and ionic bonds between glycerols create a tight seal around the cell. D. The three saturated fatty tails in phospholipids create a semi solid like structure that maintains a cell's shape.
Which of the following best describes the autoimmune response?
a. An antibody activating the humoral immune response in response to a foreign body b. The T H 1 cytokine-mediated inflammatory response to an antigen c. An antibody marking parts of one’s own body as foreign d. An antibody-mediated immune response that happens within minutes of exposure to a usually harmless antigen
A multicellular organism that has chitin cell walls and absorbs organic material is a(n)
a. Alga. b. Bacterium. c. Fungus. d. Helminth. e. Virus.
Which of the following is a challenge to the hypothesis that bats, which produce an unusually large number of sperm, increase the probability of conception when females engage in multiple matings? I) Female bats can eject the sperm of certain males
after mating. II) A female can actively choose which male mates with her last, thus increasing the odds of conception with that male's sperm. A) Only I is correct. B) Only II is correct. C) Both I and II are correct.