Energized myosin heads bind to actin only when
__________ is present.
a. ATP
b. ADP
c. calcium
d. phosphorus
e. sodium
Answer: c
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L-amino acids occur in proteins and are designated
A. unnatural. B. natural. C. rare. D. left handed. E. natural AND left handed.
Write the letter of the terrestrial biome with the lowest mean precipitation next to 1. Sequence the
remaining biomes by increasing precipitation, finishing by writing the letter of the biome with the highest mean precipitation next to 4.
A. chaparral B. desert C. tropical forest D. savanna 1. 2. 3. 4.
The connection that exists between genes and hereditary traits is based on using the information encoded in genes to synthesize
A. codons. B. histones. C. complementary bases. D. nucleotides. E. proteins.
Antimicrobics effective against only gram-positive bacteria would be termed
A. synthetic drugs. B. antibiotics. C. broad-spectrum drugs. D. narrow-spectrum drugs. E. semisynthetic drugs.