0
What else can I help you with?
What is the predominant food source of lactose?
The source of lactose is cow's milk.
Which protein source contains lactose?
Dairy products such as milk, yogurt, and cheese contain lactose, a type of sugar.
Does citrobacteria ferment lactose?
Yes, Citrobacter species are capable of fermenting lactose. They possess the necessary enzymes to break down lactose into glucose and galactose, allowing them to use lactose as a source of energy.
Does Morganella Morganii ferment lactose?
no, it shows negative for lactose fermentation on MacConkey's agar
The obvious advantage of the lactose operon system is that?
it allows bacteria to regulate the expression of genes involved in lactose metabolism in response to lactose availability. This enables efficient utilization of lactose as an energy source only when needed, conserving cellular resources when lactose is not present in the environment.
What does fermention mean?
It means that the organism can use Lactose as an energy source
What is negative lactose fermentative organisms?
Negative lactose fermentative organisms are bacterial species that do not ferment lactose, a type of sugar. This means they are unable to utilize lactose as a carbon source for energy production. Examples include Salmonella and Shigella species.
What is lactulose source or method of production?
lactulose is manufactured by enzymatic isomerization of lactose.
Why is lactose fermentation common among enteric gram negative bacteria?
Probably because that is where the gram negative bacteria have found a food source. Lactose is not the perfered diet, but it works and they are most likely there because they can tolerate the environment, and survive (on lactose) when their #1 food source is not available.
What regarding control of the lac operon and lactose utilization in bacteria is false?
Bacteria preferentially utilize lactose as a carbon source.
The lac operon enables a bacterium to build the proteins needed for lactose metabolism only when?
Lactose is present, otherwise the lac operon is not needed and is shut off.
What ingredients in EMB supplies Carbon?
The main ingredients in EMB agar that supply carbon for bacterial growth are peptones, beef extract, and lactose. Peptones and beef extract provide amino acids and nutrients, while lactose is a carbohydrate that bacteria can utilize as a carbon source through fermentation.
