Penicillin kills bacterial cells but not human cells because
A) human cells do not have cell walls.
B) human cells use ribosomes to make protein.
C) human cells have cholesterol in their cell membrane.
D) bacterial cells do not have cell membranes.
E) bacterial cells do not have DNA.
Correct Answer:
Verified
Q76: Osmosis refers to the diffusion of
A) small
Q77: Water crosses a semipermeable membrane to dilute
Q78: An important purpose of a cell wall
Q79: Phospholipids are
A) hydrophilic.
B) hydrophobic.
C) neutral.
D) partly hydrophilic
Q80: The hydrophilic head of a phospholipid is
Q82: Penicillin weakens bacterial
A) cell walls.
B) cell membranes.
C)
Q83: Penicillin was isolated from _ growing on
Q84: Evidence in support of the endosymbiosis hypothesis
Q85: Bacterial cell walls are made rigid by
Q86: Peptidoglycan is made of
A) lipids.
B) sugars.
C) amino
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