Which of the following is NOT required for passive transport?

A. membranes
B. concentration gradients
C. energy
D. molecules
E. bilayers


C. energy

Biology & Microbiology

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What were the original two Kingdoms that were established to organize living organisms?

a. Protista and Animalia b. Plantae and Eukarya c. Plantae and Animalia d. Bacteria and Eukaryote e. Eukaryote and Prokaryote

Biology & Microbiology

The lowest concentration of drug that yields no growth during a dilution method is called

A) minimum bactericidal concentration B) minimum inhibitory concentration C) mutant prevention concentration D) serum killing power

Biology & Microbiology

If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development?

A) a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract B) a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose C) a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods D) a compound that inhibits enzymes by significantly changing the pH throughout the body

Biology & Microbiology

To which period specialist should you forward the fossils?

A) Triassic B) Permian C) Carboniferous D) Devonian

Biology & Microbiology