Agents that can denature microbial proteins include all of the following except ________.
A. metallic ions
B. acids
C. alcohol
D. moist heat
E. X rays
Answer: E
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If the results of a set of experiments match predictions, the hypothesis must be rejected or revised
Indicate whether the statement is true or false.
All the following photosynthetic pigments are found in brown algae except:
a. chlorophyll a. b. carotenoids. c. fucoxanthin. d. phycocyanin. e. chlorophyll c.
A simple goiter is an enlarged form of which gland?
a. adrenal b. pancreas c. thyroid d. parathyroid e. thymus
Which of the following statements about the classical pathway of complement activation is FALSE?
A) C1 is the first protein activated in the classical pathway. B) The C1 protein complex is initiated by antigen-antibody complexes. C) C3 is not involved in the classical pathway. D) Cleaved fragments of some of the proteins act to increase inflammation. E) C3b causes opsonization.