Which of the following is NOT a characteristic of quaternary ammonium compounds?
bacterialcidal against gram-positive bacteria sprocidal AMOEBICIDAL fungicidal kills enveloped viruses
A classmate is trying to determine how a disinfectant might kill cells. You observed that when he spilled the disinfectant in your reduced litmus milk, that litmus turned blue again. you suggest to your classmate that .
the disinfectant might inhibit cell wall synthesis the disinfectant might oxidize molecules the disinfectant might inhibit protein synthesis THE DISINFECTANT MIGHT DENATURE PROTEINS he take his work away from yours
Which of the following os most likely to be bactericidal?
membrane filtration ionizing radiation LYPOHILIZATION (FREEZE -DRYING) deep-freezing all the above
Which of the following is used to control microbial growth in foods?
organic acids ALCOHOLS aldehydes heavy metals all of the above
Which disinfectant is the most effective (visual chart)