When a yeast exhausts the supply of glucose and switches to xylose in ethanol production, this phase is called:

Five BABS1202 students make an error when performing a Gram stain on a sample containing Gram-positive cocci and Gram-negative rods. Each student makes a different error.

When they looked at their slides under the microscope, only one student did not need to repeat the experiment. Which student will this be?

You have a microbiological spread plate with a dilution factor of 10^4 and a colony count of 170 CFUs. If the plate was inoculated with 100 μL of sample, what was the original viable cell count?

Remember: CFU/ mL = number of colonies x dilution factor / volume plated in mL 

Aluminum salts, such as aluminum hydroxide or aluminum phosphate, are commonly added to vaccines primarily to:

The image shows the result of 100 µL of a 10^-5 dilution of a bacterial culture spread and incubated onto an agar plate. What is the estimated CFU/mL in the original sample?

Remember: CFU/ mL = number of colonies x dilution factor / volume plated in mL 

The method of sterilisation utilising ethanol to treat a surface, sterilises materials through:

In the process of biofuel (ethanol) production, which of the following occurs after the addition of high starch material?

Which of the following reagents is NOT included in a PCR master mix?

What is the electron transport chain?

You are performing a series of spread plates that require a small volume of diluted bacterial culture. You need 100 µL of the diluted culture for each assay. How many milliliters (mL) of the diluted culture would you need to spread 10 plates?