The reduction of the microbial population to levels that are considered safe by public health standards is called
A. sanitization.
B. sterilization.
C. disinfection.
D. antisepsis.
Answer: A
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When scientists placed ATP Synthase linked to fluorescent actin on a microscope slide and added ATP, the actin could be seen spinning. If the scientists instead added ADP what would happen?
A. The actin would spin because ADP can also move through the channel in ATP synthase. B. The actin would not spin because it required ATP hydrolysis. C. The actin would not spin because only ATP can move through the channel in ATP synthase. D. The actin would spin when ADP is phosphorylated to form ATP.
Tunicates, members of one major class of the ____ lineage, have tadpolelike larvae, but their sessile adult forms are
usually encased in a leathery "tunic."
a. Petromyzontoidea b. Placodermi c. Cephalochordata d. Urochordata e. Myxinoidea
In skeletal muscle contraction, which of the following must be moved to the grooves in the actin
double helix to uncover the crossbridge binding site?
a. troponin b. Ca2+ c. tropomyosin d. ATP e. acetylcholine
What type of mutagen would you use if you wanted to study the effect of pyrimidine dimers in causing cancer?
What will be an ideal response?