All of the following are currently used to clean up oil spills except:
a. booms.
b. naturally occurring bacteria.
c. genetically engineered bacteria.
d. straw.
e. skimmers.
C
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What do we mean when we say that facilitated diffusion is specific?
a. A protein will transport specific molecules. b. One specific integral protein per membrane is involved in facilitated diffusion. c. Only specific hydrophobic molecules can be transported. d. The energy molecule ATP is specifically required for transport.
Which of the following products of the light reactions of photosynthesis are later employed in the Calvin cycle?
a) ADP and RuBP b) free oxygen and water c) NADP+ and ATP d) NADPH and ATP e) electrons and H+
Specific segments of DNA that are the functional units of inheritance are called ________
A) genes B) telomeres C) chromatids D) chromosomes
Gallstones are a problem when they:
A) break and release enzymes. B) break and release cholesterol. C) block the cystic duct or common bile duct. D) get stuck in the folds of the small intestine.