What does nitrazoxanide do in order to treat infections with Giardia and Cryptosporidium as well as against certain parasitic worms?
A) paralyzes the protozoans
B) targets nucleic acids
C) blocks anaerobic energy metabolism in protozoa
D) interferes with glucose uptake by targeting microtubules
E) the mechanisms of action are unclear
Answer: C
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Which of the following statements is consistent with the assertion that protists are paraphyletic?
A) Some protists evolved into other eukaryotic groups. B) Protists all share a common set of synapomorphies. C) Protists are all more primitive than land plants and animals. D) Protists do not share a single common ancestor.
Which of the following is a function of a cell produced by meiosis?
a. Creation of gametes for sexual reproduction b. Replacing dead cells c. Replacing damaged cells d. Generating growth in the early stages of life
You want to determine the location of a specific protein in a cell using a colored stain. Which of the
following is the best technique for this purpose? a. electron microscopy b. phase contrast microscopy c. bright-field microscopy d. fluorescence microscopy e. dark-field microscopy
Filtrate moves from the space within the glomerular capsule to ________, the portion of the renal tubule with microvilli
Fill in the blank(s) with correct word