In order to activate genes associated with sugar metabolism, the levels of cAMP are ________ in a bacterial cell.
Fill in the blank(s) with the appropriate word(s).
high
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___________________ are organisms that derive carbon from organic compounds
A. Phototrophs B. Autotrophs C. Heterotrophs D. Chemotrophs E. Lithotrophs
If an enzyme catalyzes the reaction A + B --> C, then _____.
A. the enzyme could also convert A + B to another molecule D. B. the enzyme energizes A and B to make them more reactive. C. the enzyme will also catalyze the reaction C --> A + B D. the enzyme undergoes a conformational change when bound to A and B. E. the active site of the enzyme binds C more tightly than A and B.
Antibodies are classified as
a. nucleoproteins. b. immunoglobulins. c. steroids. d. carbohydrates. e. lipids.
During a dive, the partial pressure of dissolved gases increases by about 1 atm for every ____ in depth
a. 1 meter b. 5 meters c. 10 meters d. 15 meters e. 20 meters