Which of the following is an example of an exotoxin?
A) neurotoxin
B) coagulase
C) lipid A
D) streptokinase
E) collagenase
A
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Most geneticists would agree that human races are distinct genetic entities
a. True b. False Indicate whether the statement is true or false
Which of the following is the major reason why it has been difficult to treat viral infections with chemotherapeutic agents?
A. Viruses have no metabolism and therefore offer no selective point of attack. B. Actually, viruses are not difficult to treat with chemotherapeutic agents. C. Viruses use the metabolic machinery of their hosts, which limits many of the potential points of attack. D. Viral metabolism resembles that of their hosts so there is no selective point of attack.
Which reaction represents a dehydration synthesis?
A. C6H12O6 + C6H12O6 + C6H12O6 ® C18H32O16 + 2H2O B. CO2 + H2O ® C6H12O6 + O2 C. NaOH + H2O ® Na+OH- + H2O D. triglyceride ® glycerol + 3 fatty acids + 3H2O
After hemoglobin binds carbon dioxide, it is known as
A. carbaminohemoglobin. B. alpha hemoglobin. C. deoxyhemoglobin. D. beta hemoglobin. E. oxyhemoglobin.