Which of the following is (are) used by microorganisms to become resistant to a particular drug?
A. Exclusion of the drug from the cell
B. Enzymatic inactivation of the drug
C. An alternate metabolic pathway that bypasses the drug-sensitive step
D. All of the choices are correct.
Answer: D
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Turgor pressure is observed when a plant cells environment is ________________.
A. hypoosmotic B. isosmotic C. osmosis D. hyperosmotic
For children 3 years of age and older, the most useful growth charts are
Select one: a. BMI-for-age. b. head circumference and height-for-age. c. weight-for-height and head circumference. d. weight-for-age and height-for-age.
What does the 48 hour chill–fever pattern in humans coincide with in the plasmodial life cycle?
a. development of sporozoites b. gamete maturation c. release of merozoites from erythrocytes d. transfer of sporozoites from erythrocytes into liver cells
A patient excretes a large volume of very dilute urine on a continuing basis. This is most likely due to:
a. excessive ADH secretion b. absence of ADH c. overproduction of aldosterone d. increased blood pressure e. increased renin secretion