Complement fixation is a more sensitive test for the presence of specific antibodies than are agglutination tests.
Answer the following statement true (T) or false (F)
True
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A bacterium that catabolizes a compound by linking ion pumps to establish a proton or sodium motive force for energy
A) can circumvent substrate-level and oxidative phosphorylation. B) makes insufficient energy to grow but enough for cellular maintenance to survive. C) requires a second bacterium to cooperatively drive the gradient. D) still requires another carbon substrate to provide a carbon source.
The virulence factor of Yersinia pestis that is a protease that destroys C3b and C5a is
A. Yops. B. pla. C. F1. D. protein A.
Which of the following is not one of the four tissue types?
A. Muscle B. Nervous C. Epithelial D. Connective E. Squamal
The most common mode for the transmission of Schistosoma haematobium is ________.
A. contaminated meat B. opportunism C. contaminated water D. fecal-oral route E. fomites