First, gram-negative bacteria have a thin cell wall that is about 1.5 to 10 nanometers across, whereas gram-positive bacteria have a thick cell wall measuring about 20 to 80 nanometers.
The Gram-positive rod, Bacillus subtilis is lipase positive (pictured ... Use a sterilized inoculating loop and take a visible amount of fresh cells from one of your working slants. 4. Mix the cells ...