An enzyme inhibitor is a molecule that is able to ____ an enzyme and _____ its activity.
a) bind to; increase
b) bind to; decrease
c) activate; decrease
d) activate; increase
Ans: b) bind to; decrease
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Which of these statements is false regarding
kidney stones? a. They may become lodged inside a ureter or the urethra. b. They may block urine flow. c. A high carbohydrate diet increases the risk for their formation. d. They may cause extreme pain. e. They may lead to permanent kidney damage.
Which of the following organs may be removed without harming the body?
a. liver b. pancreas c. heart d. gallbladder e. brain
Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species. Recently, these birds have been classified as eastern and western forms of a single species, the yellow-rumped warbler
Which of the following pieces of evidence, if true, would be cause for this reclassification? A) The two forms interbreed often in nature, and their offspring have good survival and reproduction. B) The two forms live in similar habitats. C) The two forms have many genes in common. D) The two forms have similar food requirements. E) The two forms are very similar in coloration.
What birds only come to land to breed?
a. Albatrosses b. Alcids c. Petrels d. Terns