Which of the following statements is NOT true of Gram-positive bacteria?
A. They lack the lipopolysaccharides that Gram-negative bacteria have.
B. They turn purple when subjected to the Gram-staining process whereas Gram-negative bacteria stain pink.
C. They have a thicker peptidoglycan layer than do Gram-negative bacteria.
D. They have a gram molecular weight of more than 1.0 whereas Gram-negative bacteria have a gram molecular weight of less than 1.0.
E. They are less resistant to antibiotics than Gram-negative bacteria.
Answer: D
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Suppose that the dinucleotide in the accompanying figure were cleaved with the enzyme spleen diesterase, which breaks the covalent bond connecting the phosphate to C-5'
After such cleavage, to which nucleoside is the phosphate now attached?
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Where is the respiratory control center located?
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