Match the following items with the correct phrases.
_______1. Produced by some strains of Streptococcus pyogenes.
_______2. Tetanospasmin is an example.
_______3. Its presence in the bloodstream can lead to fever and septic shock.
_______4. Produced by Clostridium botulinum.
_______5. Produced by Clostridium difficile.
a. neurotoxin
b. enterotoxin
c. diphtheria toxin
d. endotoxin
e. erythrogenic toxin
1. e. erythrogenic toxin
2. a. neurotoxin
3. d. endotoxin
4. a. neurotoxin
5. b. enterotoxin
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Which of the following terms defines death of cardiac muscle tissue?
a. atherosclerosis b. angina c. myocardial infarction d. pulmonary embolism
A "high-energy bond" in ATP
a. absorbs a large amount of free energy when the phosphate group is attached during hydrolysis. b. is formed when ATP is hydrolyzed to ADP and one phosphate group. c. is similar to the bonds in glucose molecules; that is why glucose can be used as a source of metabolic energy. d. contributes to the “energy in” part of an endergonic reaction. e. is/does all of these.
Which of the following characteristics applies to biomes?
a. usually confined to a relatively small geographical area b. encompass interacting landscapes c. level of ecological organization preceding (lower than) ecosystem d. boundaries extend beyond climate barriers e. regions with similar climate, but different plants, animals, and soil
The destruction of the ozone layer is caused by a chemical reaction between UV light and
A) hydrogen sulfide. B) methane. C) chlorofluorocarbons (CFCs). D) nitrogen. E) helium.