Sulfanilamide is an analog of para-aminobenzoic acid (PABA), a precursor of foli

Question

Sulfanilamide is an analog of para-aminobenzoic acid (PABA), a precursor of folic acid, a vitamin specifically necessary for synthesis of
A. lipids
B. polysaccharides
C. monosaccharides
D. nucleic acid

Which of the following represents part of the mechanism of penicillin resistance?

A. Beta-lactamase is activated within the cytoplasm of the bacterial cell.
B. Penicillin is endocytosed by the cell and degraded within a lysosome.
C. Beta-lactamase is transported out of the cell and into the surrounding medium.
D. Penicillin is converted into tetracycline which has a shorter half-life.

Explanation / Answer

1.D) nucleic acid

Folic acid is necessary for the body as it makes DNA, RNA and metabolised amino acids.

2. The following represents part of the mechanism of penicillin resistance- a) Beta-lactamase is activated within the cytoplasm of the bacterial cell.

Penicillins are beta-lactam antibiotics. Resistance to penicillin is achieved by the production of inactivating enzymes known as beta lactamase.

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