If a reaction is spontaneous, then ?G is ____ and the reaction is ____
a. negative; endergonic
b. negative; exergonic
c. zero; endergonic
d. positive; endergonic
e. positive; exergonic
ANSWER: b
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The pentose sugars found in DNA and RNA differ in which of the following ways?
A. The ribose in RNA lacks a hydroxyl group on the 2' carbon. B. The deoxyribose in DNA has a hydroxyl group in the 2' position but not the 3'. C. Both sugars have 5 carbons and form 5-membered rings, but ribose has an oxygen in the ring and deoxyribose does not. D. Both sugars have "puckered" rings but differ in which carbon lies outside of the plane of the rest of the ring atoms. E. The ribose in RNA attaches to the nitrogenous base through the 2' carbon, whereas the deoxyribose attaches to the base through the 1' carbon.
Resting on top of the basilar membrane is the ____
a. organ of Corti b. semicircular canals c. cochlear duct d. scala tympani e. scala vestibuli
Activated thrombin makes this protein change
A) fibrinogen B) agglutinate C) plasmin D) prothrombin
A woman who ingests recreational drugs while pregnant, causing decreased attention and intelligence in her child and her grandchild, demonstrates which of the following?
a. teratogen proliferation b. fetal programming c. organogenic distress d. postpartum migration