Chapter 7: The Control of Microbial Growth Rate of Microbial Death Physical Methods Chemical Methods Chemical Agents Terminology $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 FINAL ROUND

Topic 1: Terminology $100 Question The removal or destruction of ALL forms of microbial life is called sterilization. disinfection. pasteurization. sanitization. Answer = A ANSWER BACK TO GAME

Topic 1: Terminology $100 Answer The removal or destruction of ALL forms of microbial life is called sterilization. disinfection. pasteurization. sanitization. BACK TO GAME

Topic 1: Terminology $200 Question The destruction of vegetative pathogens is called sanitization. commercial sterilization. disinfection. antisepsis. Answer = C ANSWER BACK TO GAME

Topic 1: Terminology $200 Answer The destruction of vegetative pathogens is called sanitization. commercial sterilization. disinfection. antisepsis. BACK TO GAME

Topic 1: Terminology $300 Question What treatment is intended to lower microbial counts on eating and drinking utensils to safe public health levels? sanitization sterilization pasteurization antisepsis Answer = A ANSWER BACK TO GAME

Topic 1: Terminology $300 Answer What treatment is intended to lower microbial counts on eating and drinking utensils to safe public health levels? sanitization sterilization pasteurization antisepsis BACK TO GAME

Topic 1: Terminology $400 Question The absence of significant contamination is called sepsis. bacteriostasis. asepsis. antisepsis. Answer = C ANSWER BACK TO GAME

Topic 1: Terminology $400 Answer The absence of significant contamination is called sepsis. bacteriostasis. asepsis. antisepsis. BACK TO GAME

Topic 1: Terminology $500 Question Commercial sterilization is a limited heat treatment to destroy Streptococcus pyogenes. Clostridium tetani. Staphylococcus aureus. Clostridium botulinum endospores. Answer = D ANSWER BACK TO GAME

Topic 1: Terminology $500 Answer Commercial sterilization is a limited heat treatment to destroy Streptococcus pyogenes. Clostridium tetani. Staphylococcus aureus. Clostridium botulinum endospores. BACK TO GAME

Topic 2: Rate of Microbial Death $100 Question Which of the following BEST describes the pattern of microbial death? The cells in a population die at a constant rate. All the cells in a culture die at once. Not all of the cells in a culture are killed. The pattern varies, depending on the species. Answer = A ANSWER BACK TO GAME

Topic 2: Rate of Microbial Death $100 Answer Which of the following BEST describes the pattern of microbial death? The cells in a population die at a constant rate. All the cells in a culture die at once. Not all of the cells in a culture are killed. The pattern varies, depending on the species. BACK TO GAME

Topic 2: Rate of Microbial Death $200 Question The time it takes to kill a microbial population is dependent on heat. proportional to the number of microbes. dependent on life cycle phases. dependent on chemicals. Answer = B ANSWER BACK TO GAME

Topic 2: Rate of Microbial Death $200 Answer The time it takes to kill a microbial population is dependent on heat. proportional to the number of microbes. dependent on life cycle phases. dependent on chemicals. BACK TO GAME

Topic 2: Rate of Microbial Death $300 Question Damage to which structure causes cellular components to leak into the surrounding medium? cell wall plasma membrane cytoplasm glycocalyx Answer = B ANSWER BACK TO GAME

Topic 2: Rate of Microbial Death $300 Answer Damage to which structure causes cellular components to leak into the surrounding medium? cell wall plasma membrane cytoplasm glycocalyx BACK TO GAME

Topic 2: Rate of Microbial Death $400 Question Which of the following types of bond are NOT important in maintaining the shape of proteins? peptide bonds hydrogen bonds disulfide bonds covalent bonds Answer = A ANSWER BACK TO GAME

Topic 2: Rate of Microbial Death $400 Answer Which of the following types of bond are NOT important in maintaining the shape of proteins? peptide bonds hydrogen bonds disulfide bonds covalent bonds BACK TO GAME

Topic 2: Rate of Microbial Death $500 Question Which of the following is NOT a factor that influences the effectiveness of antimicrobial treatments? microbial characteristics number of microbes time of day presence of a biofilm Answer = C ANSWER BACK TO GAME

Topic 2: Rate of Microbial Death $500 Answer Which of the following is NOT a factor that influences the effectiveness of antimicrobial treatments? microbial characteristics number of microbes time of day presence of a biofilm BACK TO GAME

Topic 3: Physical Methods $100 Question To sterilize heat-labile solutions, one should use dry heat. an autoclave. membrane filtration. pasteurization. Answer = C ANSWER BACK TO GAME

Topic 3: Physical Methods $100 Answer To sterilize heat-labile solutions, one should use dry heat. an autoclave. membrane filtration. pasteurization. BACK TO GAME

Topic 3: Physical Methods $200 Question Which method kills microorganisms primarily by the coagulation of proteins (denaturation)? filtration radiation desiccation moist heat Answer = D ANSWER BACK TO GAME

Topic 3: Physical Methods $200 Answer Which method kills microorganisms primarily by the coagulation of proteins (denaturation)? filtration radiation desiccation moist heat BACK TO GAME

Topic 3: Physical Methods $300 Question The phosphatase test is used to determine whether which one of the following processes was carried out correctly? radiation filtration desiccation pasteurization Answer = D ANSWER BACK TO GAME

Topic 3: Physical Methods $300 Answer The phosphatase test is used to determine whether which one of the following processes was carried out correctly? radiation filtration desiccation pasteurization BACK TO GAME

Topic 3: Physical Methods $400 Question Flaming is one of the simplest methods of pasteurization. dry heat sterilization. moist heat. desiccation. Answer = B ANSWER BACK TO GAME

Topic 3: Physical Methods $400 Answer Flaming is one of the simplest methods of pasteurization. dry heat sterilization. moist heat. desiccation. BACK TO GAME

Topic 3: Physical Methods $500 Question The lowest temperature at which all of the microorganisms in a particular liquid suspension will be killed in 10 minutes is called thermal death point. thermal death time. decimal reduction time. decimal reduction point. Answer = A ANSWER BACK TO GAME

Topic 3: Physical Methods $500 Answer The lowest temperature at which all of the microorganisms in a particular liquid suspension will be killed in 10 minutes is called thermal death point. thermal death time. decimal reduction time. decimal reduction point. BACK TO GAME

Topic 4: Chemical Methods $100 Question Sterilization can be achieved by using alcohol. soap. chlorine. ethylene oxide. Answer = D ANSWER BACK TO GAME

Topic 4: Chemical Methods $100 Answer Sterilization can be achieved by using alcohol. soap. chlorine. ethylene oxide. BACK TO GAME

Topic 4: Chemical Methods $200 Question Which method of evaluating disinfectants is the currently used standard? use-dilution test use-diffusion test disk-dilution test disk-diffusion test Answer = A ANSWER BACK TO GAME

Topic 4: Chemical Methods $200 Answer Which method of evaluating disinfectants is the currently used standard? use-dilution test use-diffusion test disk-dilution test disk-diffusion test BACK TO GAME

Topic 4: Chemical Methods $300 Question Which of the following is used on environmental surfaces, instruments, skin surfaces, and mucous membranes? nitrites ozone phenolics ethylene oxide Answer = C ANSWER BACK TO GAME

Topic 4: Chemical Methods $300 Answer Which of the following is used on environmental surfaces, instruments, skin surfaces, and mucous membranes? nitrites ozone phenolics ethylene oxide BACK TO GAME

Topic 4: Chemical Methods $400 Question Ethanol can be used as an effective bactericide when used at a concentration of 70%. 50%. 40%. 100%. Answer = A ANSWER BACK TO GAME

Topic 4: Chemical Methods $400 Answer Ethanol can be used as an effective bactericide when used at a concentration of 70%. 50%. 40%. 100%. BACK TO GAME

Topic 4: Chemical Methods $500 Question Which of the following is NOT used to preserve foods? sulfur dioxide sodium nitrite potassium sorbate biguanides Answer = D ANSWER BACK TO GAME

Topic 4: Chemical Methods $500 Answer Which of the following is NOT used to preserve foods? sulfur dioxide sodium nitrite potassium sorbate biguanides BACK TO GAME

Topic 5: Chemical Agents $100 Question Which of the following is the MOST useful for disinfecting medical instruments? quats chlorine phenol benzoic acid Answer = A ANSWER BACK TO GAME

Topic 5: Chemical Agents $100 Answer Which of the following is the MOST useful for disinfecting medical instruments? quats chlorine phenol benzoic acid BACK TO GAME

Topic 5: Chemical Agents $200 Question Which of the following is/are used to mechanically remove microbes through scrubbing? alcohol biguanides detergents quats Answer = C ANSWER BACK TO GAME

Topic 5: Chemical Agents $200 Answer Which of the following is/are used to mechanically remove microbes through scrubbing? alcohol biguanides detergents quats BACK TO GAME

Topic 5: Chemical Agents $300 Question Which chemical agents cause a disruption of the plasma membrane and denaturation of enzymes? phenolics biguanides heavy metals halogens Answer = A ANSWER BACK TO GAME

Topic 5: Chemical Agents $300 Answer Which chemical agents cause a disruption of the plasma membrane and denaturation of enzymes? phenolics biguanides heavy metals halogens BACK TO GAME

Topic 5: Chemical Agents $400 Question Which agents cause denaturation of enzymes and other essential proteins? aldehydes heavy metals peroxygens nitrates Answer = B ANSWER BACK TO GAME

Topic 5: Chemical Agents $400 Answer Which agents cause denaturation of enzymes and other essential proteins? aldehydes heavy metals peroxygens nitrates BACK TO GAME

Topic 5: Chemical Agents $500 Question What chemical is used to prevent molds from growing in cheese and soft drinks? sorbic acid calcium propionate sulfur dioxide sodium nitrate Answer = A ANSWER BACK TO GAME

Topic 5: Chemical Agents $500 Answer What chemical is used to prevent molds from growing in cheese and soft drinks? sorbic acid calcium propionate sulfur dioxide sodium nitrate BACK TO GAME

FINAL ROUND Question What chemical selectively inhibits certain iron-containing enzymes of Clostridium botulinum? sodium benzoate sodium nitrate sodium nitrite calcium propionate Answer = C ANSWER BACK TO GAME

FINAL ROUND Answer What chemical selectively inhibits certain iron-containing enzymes of Clostridium botulinum? sodium benzoate sodium nitrate sodium nitrite calcium propionate BACK TO GAME