Anthrax, which means "charcoal" in Greek, derives its name from
A. the airborne endospores it produces.
B. the staining properties of the bacillus under the microscope.
C. the black eschars it produces on human skin.
D. its ability to invade the bloodstream and produce toxemia.
E. the high mortality it causes in infected individuals.
Answer: C
You might also like to view...
Diabetes mellitus translates roughly as "copious urination" + "honey." This disease results from disorders of glucose uptake by systemic cells and can cause, among other symptoms, high levels of glucose in the blood and glucose appearing in the urine (this is what diastix measure). Which of the following is a reasonable explanation of this observation?
A. The reabsorption capacity of the kidney for glucose is exceeded. B. A lack of sodium in the filtrate blocks the function of the Na+/glucose symport protein. C. High levels of glucose interfere with ADH function. D. The high levels of glucose induce a "dehydrated" state that promotes production of a large amount of dilute urine. E. None of the choices given are a logical explanation for this observation.
You are using genetic engineering to design a protein that needs to be synthesized in the cytoplasm and then localized in the nucleus of the cell. To accomplish this, you could add
A) a DNA sequence for a nuclear localization signal into the DNA that will be present in the mature protein. B) the protein during mitosis, at a time when the nuclear membrane is dispersed. C) a nucleotide or few nucleotides to the DNA sequence for the protein. D) a series of specific polysaccharides to the carboxyterminal end of the protein. E) inverted repeats to the DNA sequence for the protein.
A commonly used test for muscular endurance is:
What will be an ideal response?
Consider the mechanism by which actin and tubulin polymerize. Which of the items below does not describe something similar about the polymerization mechanisms of actin and microtubules?
(a) Although both filaments can grow from both ends, the growth rate is faster at the plus ends. (b) Depolymerization initiates at the plus ends of filaments. (c) Nucleotide hydrolysis promotes depolymerization of filaments. (d) Free subunits (actin and tubulin) carry nucleoside triphosphates.