Certain antibiotics act by attaching to ribosomes. Which statement accounts for the fact that these antibiotics kill bacterial cells but do not kill most human cells?
- AmRNA in bacteria is formed in the cytoplasm from naked DNA.
- BThe antibiotics cannot pass through human cell membranes.
- CThe codes used for amino acids in bacteria are different from those used by humans.
- DThe ribosomes of bacteria have a different structure from those of humans.