Question

Which is TRUE of Gram-

negative bacteria?
A. a thick cell wall of peptidoglycan
B. stains pink from safranin
C. causes sickness like strep throat and
staph infections this
D. less threatening and easily killed
with antibiotics

Answer 1

Answer: B. stains pink from safranin

Step-by-step explanation:

Safranin is the counterstain in the gram stain protocol. Gram positives have a thicker wall of peptidoglycan and will retain the purple from the crystal violet while the gram negative will only stain from the safranin.

C. Staph refers to staphylococcus aureus and is gram positive.

D. Gram negatives are generally more resistant to antibiotics.