What will happen in a phenol red test if you incubate an obligate aerobe with glucose...

What will happen in a phenol red test if you incubate an obligate aerobe with glucose as the fermentable sugar?

What is the substrate for the catalase enzyme? What do you detect if the catalase test is positive?

Why doesn't the iodine react with starch in the agar surrounding an organism that produces amylase?

Expert Solution

gladiator answered 2 years ago

you are not sure if an organism is an obligate aerobe or a facultative anaerobe. If...

you are not sure if an organism is an obligate aerobe or a facultative anaerobe. If you do not have an anaerobe jar,how could you identify the oxygen preference for the organism?

You are studying a bacterial strain that is an obligate aerobe. The bacteria can do some...

You are studying a bacterial strain that is an obligate aerobe. The bacteria can do some fermentation and produce lactic acid as an end product, but normally only when starved for oxygen and can’t survive on fermentation alone. Your rival dumps a chemical into your prize culture. This chemical binds to the first protein in the electron transport chain, locking it into a fully reduced and inhibited state permanently. Describe the predicted consequences of this poison on the function of...

It is a gram negative bacillus, facultative anaerobe, Phenol Red test for Lactose there was no...

It is a gram negative bacillus, facultative anaerobe, Phenol Red test for Lactose there was no fermentation, Catalase test was positive with bubbles, oxidase was negative. What would be the name for this unknown bacteria?

1) How are phenol red broth test, urea test and lipase test connected to one another?...

1) How are phenol red broth test, urea test and lipase test connected to one another? a) they use the same enzyme b)they have the same products c) they use the same indicator d) they have the same color of a positive result 2) I am a microorganism that causes skin infections. Yes, I can live at higher salt concentration almost like the perfect Staphylococcus aureus, but due to the nature of my ecological niche, I also must be able...

You were given two test-tube with cultures Escherichia coli and Bacillus subtilis grown on phenol red...

You were given two test-tube with cultures Escherichia coli and Bacillus subtilis grown on phenol red lactose broth. Unfortunately, labels came off the tubes. How can you determine which test-tube contains what culture without running any additional tests?

What is the purpose of including the pH indicator phenol red in Mannitol Salt Agar (MSA)

What can cause a phenol red indicator of carbohydrate fermentation to give a false positive with...

What can cause a phenol red indicator of carbohydrate fermentation to give a false positive with gas? I heavily incubated my organism in the test tube and it is producing a huge gas bubble in the Durham tube and a clear yellow (acid) color. I incubated my tube at my organism's optimism growth conditions (oxygen and temperature wise) for 48 hrs exactly.. i was supposed to get a red no gas result ( -) what might have gone wrong?

What are the quality control requirements for Glucose tolerance testing and fasting blood glucose test? What...

What are the quality control requirements for Glucose tolerance testing and fasting blood glucose test? What is the level of sensitivity for both tests? What advantages and disadvantages of the tests have?

What would happen to cellular glucose-6-phosphate if the pentose phosphate pathway is inhibited?

The working range of the total phenol test is 0-5.00 mg/L. You have at your disposal...

The working range of the total phenol test is 0-5.00 mg/L. You have at your disposal multiple 500 ± 0.2 mL and 100 ± 0.15 mL volumetric flasks for calibration standard preparation, a 2L Winchester of 99.95% phenol, unlimited distilled/deionized water, and standard 5 ± 0.015, 10 ± 0.025, 25 ± 0.05 mL pipettes: question : Propose a methodology to produce a stock solution of ~ 5.00 mg/L (ρ(phenol) = 1.07 g/cm³) and the dilution steps taken to produce 6x...

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