Antimicrobial agents that damage nucleic acids also affect
A) the cell wall.
B) the cell membrane.
C) the viral envelope.
D) endospores.
E) protein synthesis.
E
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Which of the following genera of the Archaea do not have cell walls?
A. Thermoplasma B. Thermococcus C. Halobacterium D. None of the choices are correct.
Which of the following is the correct sequence of events for an altered protein that is secreted from the cell?
A. Golgi apparatus - ribosome - plasma membrane B. Golgi apparatus - smooth endoplasmic reticulum - plasma membrane C. nucleus - smooth endoplasmic reticulum - Golgi apparatus D. rough endoplasmic reticulum - Golgi apparatus - plasma membrane E. smooth endoplasmic reticulum - plasma membrane - Golgi apparatus - ribosome
During an action potential,
a. sodium ions rush out of the cell, switching the potential to +35 mV. b. sodium ions rush into the cell, switching the potential to ?70 mV. c. sodium ions rush into the cell, switching the potential to +35 mV. d. sodium ions rush out of the cell, switching the potential to ?70 mV. e. sodium ions rapidly move in and out of different parts of the neuron, oscillating potential between ?50 and +35 mV.
Which category of plant second metabolites includes stimulants like caffeine, nicotine, and cocaine?
A. alkaloids B. phenolics C. tannins D. terpenes E. cyanogenic glycosides