You are performing a Gram stain on gram-negative bacteria and you stop after the decolorizer step. What is the appearance of the bacteria at this point?Question 11Answera.redb.colorlessc.purpled.brownClear my choice

You are performing a Gram stain on gram-positive bacteria and you stop after the addition of the first dye. What is the appearance of the bacteria at this point?Question 13Answera.purpleb.colorlessc.redd.brown

Gram staining involves three steps: 1. crystal violet (purple) staining, 2. decolorization, 3. counterstaining (red). If you look under a microscope after the first step, you will see that:Group of answer choicesonly gram negative bacteria are purpleonly gram positive bacteria are purpleboth gram positive and negative bacteria are purpleneither gram positive and negative bacteria are purple

After watching the video above, identify the similarities and differences between gram-positive and gram-negative bacteria.

similarities and differences between gram-positive and gram-negative bacteria.

Identify the characteristic that is found in Gram-positive bacteria.Multiple Choicestains pink / red with the Gram staina thick peptidoglycan layer in their cell walla thin cell wallan outer membrane composed of lipopolysaccharide