Some viruses consist only of a protein coat surrounding a nucleic acid core. If you wanted to radioactively label the nucleic acids separately from the protein, you would use radioactive _____
A) sulfur
B) carbon
C) nitrogen
D) phosphorus
Answer: D
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As electrons are passed down the electron transfer chain, ________ are pumped into the ________
a. hydrogen ions / outer mitochondrial compartment b. NADH molecules / extracellular space c. electrons / cytoplasm d. hydrogen ions / mitochondrial matrix
The skin is an example of a(n) ____________________ membrane. Fill in the blank(s) with the appropriate word(s)
Humans belong to which of the following domains?
A) Bacteria B) Archaea C) Eukarya D) vertebrates
Which statement is true about standard precautions?
A) They are in force only for bloodborne pathogens. B) They apply to all healthcare providers working with all patients. C) They require full face shields, gloves, and barrier gowns for all patient contact situations. D) They are used only when the patient is known to be infected with a BSL-2 or higher pathogen. E) They are used in student labs that only handle BSL-1 pathogens