What are the intrinsic factors for the microbial growth? All of these Oxidation-Reduction Potential Moisture pH TRUE ANSWER : ? YOUR ANSWER : ?
Suspected colonies of Staphylococcus aureus when grown on Baird-Parker medium shall show coagulase activity catalase activity protease activity none of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not true for the thermal resistance of the bacterial cells? Bacteria that clump considerably or form capsules are difficult to kill Higher the optimal and maximal temperatures for growth, higher the resistance Cells low in lipid content are harder to kill than other cells Cocci are usually more resistant than rods TRUE ANSWER : ? YOUR ANSWER : ?
A psychrophilic halophile would be a microbe that prefers cold temperatures and increased amounts of salt warm temperatures and increased amounts of pressure warm temperatures and increased amounts of acid cold temperatures and the absence of oxygen TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is true about ISO 2002 method for Salmonella detection? Rappaport Vassiliadis (RV) broth has been replaced by Rappaport Vassiliadis Soya (RVS) broth All of these Selenite cystine (SC) broth is replaced by Muller Kauffmann tetrathionate novobiocin broth (MKTTn) XLD is the first isolation medium rather than BGA TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following acid will have higher bacteriostatic effect at a given pH? Acetic acid Citric acid Tartaric acid Maleic acid TRUE ANSWER : ? YOUR ANSWER : ?
Enumeration of microorganism refers to None of these either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar non-selective plating, depending on the test either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar, or non-selective plate, depending on the test TRUE ANSWER : ? YOUR ANSWER : ?
Plate count of bacteria in foods generally use the plating medium consisting of peptone, glucose, sodium chloride, agar and distilled water peptone, yeast extract, glucose, sodium chloride and distilled water yeast extract, glucose, sodium chloride, agar and distilled water peptone, yeast extract, glucose, sodium chloride, agar and distilled water TRUE ANSWER : ? YOUR ANSWER : ?
Yeast and mould count determination requires- acidified potato glucose agar nutrient agar violet Red Bile agar MacConkey agar TRUE ANSWER : ? YOUR ANSWER : ?
Water activity can act as an extrinsic factor an intrinsic factor determining the likelihood of microbial proliferation a processing factor All of these TRUE ANSWER : ? YOUR ANSWER : ?