Mcb 2610 lab - Study guides, Class notes & Summaries

Coliforms are a subgroup of enteric bacteria classified by their ability to ferment which sugar? - lactose A Durham tube is included in the LT broth tubes to detect ___, a byproduct of lactose fermentation. - gas production ___ is an enzyme that degrades starch. - Amylase ___ is an opportunistic pathogen that commonly causes staph infections. - Staphylococcus aureus A clear area due to lysis by a phage in a lawn of host cells is called a(n) ____. - Plaque A confluent growth of cells in th...

MCB 2610 Lab Quiz Questions With Complete Solutions Latest Update

MCB 2610 Lab Practical 1 Question and answers verified to pass 2024/2025 MCB 2610 Lab Practical 1 gram positive - correct answer purple cocci gram negative - correct answer pink rods endospore - correct answer responses to certain environmental conditions such as depletion of nutrients stages of growth curve: - correct answer lag, exponential (log), stationary, death lag phase - correct answer occurs when culture is transferred to fresh growth medium exponential pha...

MCB 2610 Lab Practical Question and answers verified to pass 2024/2025 MCB 2610 Lab Practical What is the process of contamination control? - correct answer Aseptic technique What are pipettes - correct answer calibrated glass tubes used to measure and dispense small volumes of liquids What color is the bigger vs. smaller micropipettors pipettes? - correct answer Green - bigger Blue - smaller What is the purpose of isolating bacteria? - correct answer To establish a PURE ...

Gram positive bacteria do not retain CV when gram stained, so they appear pink after counter-staining with safranin. T/F - False. They do retain crystal violet and appear purple Complex media is made with precise chemical composition. T/F - False. Complex media has unknown composition ______ is an opportunistic pathogen that causes staph infections. - Staphylococcus aureus A durham tube is included in the LT broth tubes to detect _________, a byproduct of lactose fermentation - gas product...

MCB 2610 Lab Practical Question and answers already passed 2024/2025 MCB 2610 Lab Practical The ____ method is a quick and easy way to isolate bacteria - correct answer T streak How many times do you get culture from the tube while performing a T streak? - correct answer 1 Who do you contact to reschedule lab? - correct answer Dr. Intrieri The culture tubes are disposed of in the gray trash bins. T/F - correct answer False, they are disposed in the test tube disposal bins...

What is fermentation - Being able to grow anaerobically in the presence of a suitable organic compound, such as a sugar. Several reduced products are excreted by the cell as a way of disposing of the electrons derived from oxidation. Function and Types of hydrolytic enzymes - Hydrolytic enzymes hydrolyze (break down) complex molecules to get food that can be transported into the cell. 1. Amylase 2. Caseinase 3. Gelatinase Amylase - catalyzes starch hydrolysis. Reacts readily with iodine...

FINAL EXAM: MCB 2610 Lab final Exam with Certified Solutions The ______ _______ method is a quick and easy way to isolate bacteria CORRECT ANSstreak plate In what orientation do you incubate the plates after they have been streaked? CORRECT ANS-agar half bottom

why is the spore stain used with bacteria such as Bacillus and Clostridium? - ️️they develop an endospore in response to certain environmental conditions such as depletion of nutrients procedure for making smears - ️️1. use a wax pencil to draw a circle on the slide 2. take a loop of distilled water and smear it on the slide 3. take a very small loop of culture 4. smear it onto distilled water 5. allow to dry then heat fix, smear side up 3x what is the purpose of aseptic techniqu...

MCB 2610 Lab Exam 1 Questions with complete solution 2024/2025 MCB 2610 Lab Exam 1 T streak method - correct answer ussed to isolate colonies 1. steralize loop by placing in flame 2. dip into media 3. spread on zig zap in 1 4. steralize then drag from 1 to 2 5. steralize than drag from 2 to 3 colony - correct answer community of genetically identical cells that can be seen without a microscope liquid vs solid media - correct answer liquid= grow large amounts of bacteria for ...