What term most correctly describes when energy released by the flow of an ion from high to low concentration fuels the transport of an unrelated substance from low to high concentration but in the same direction?
A) phosphotransferase system
B) antiport
C) primary active transport
D) tertiary active transport
E) symport
Answer: E
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Cattle are able to survive on a diet consisting almost entirely of plant material because cattle _____
A) are autotrophic B) re-ingest their feces C) manufacture all fifteen amino acids out of sugars in the liver D) saliva has enzymes capable of digesting cellulose E) have cellulose-digesting, symbiotic microorganisms in chambers of their stomachs
Defibrillators work by ____
a. pumping adrenalin into heart tissue b. delivering an electric shock to the heart’s pacemaker c. automating CPR d. massaging the heart using remote sensors e. delivering mechanical pressure to the heart
Four of the five answers listed below are characteristic of hyperthyroidism. Select the exception
a. excessive weight loss b. excessive water loss through urination c. intolerance of heat d. increased heart rate and blood pressure e. excessive sweating
Chromosome inversions often result from a multistep process that begins when radiation causes ________
A) a duplication event, followed by reannealing of chromosomes B) four double-stranded breaks in a chromosome C) two double-stranded breaks in a chromosome D) two single-stranded breaks in a chromosome