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How would lactose react towards benedict's?

Lactose is a disaccharide composed of glucose and galactose, therefore it would react with Benedict's reagent to produce a positive result. Benedict's reagent is used to test for reducing sugars, and since lactose contains a free anomeric carbon that can reduce copper ions present in the reagent, it would give a color change from blue to brick-red precipitate upon heating if lactose is present.


What is the negative control in the lactose experiment?

The negative control in the lactose experiment would be a sample that does not contain lactose or the enzyme needed to break down lactose. This control is used to show what would happen if no lactose were present for the enzyme to act on.


Would iodine be effective if testing for the presence of lactose?

No, iodine would not be effective for testing the presence of lactose. Iodine is typically used to detect the presence of starch, not lactose. To test for lactose, you would typically use reagents like Benedict's solution or glucose test strips.


1 Molar solution of Lactose?

342 grams of Lactose in 1 litre water or 34.2 grams in 100 mls.


What would you assume if you found RNA transcripts of lactose-utilizing genes within E coli?

the presence of lactose


What would be possible consequence of replacing the lactose with glucose on the MacConkey Agar?

When lactose is replaced with another type of sugar like glucose in the MacConkey Agar, it is usually to identify bacteria mutations. The method to detect the fermentation in a replacement sugar solution is the same as lactose fermented solution.


How is glucose an important factor in lactose synthesis?

Glucose is important for lactose synthesis because it provides the substrate for the enzyme lactose synthase to combine with galactose to form lactose. Without glucose, there would not be enough substrate available for lactose synthesis to occur efficiently. Additionally, glucose can stimulate the production of lactose synthase enzyme, further promoting lactose synthesis in mammary glands.


What do they ask in a psychological employment evaluation?

They basically ask questions that are geared toward figuring out the personality of the employee. They will give the employee hypothetical scenarios and ask how they would react.


Give result lactose test for bacteria citrobacter diversus?

Citrobacter diversus is capable of fermenting lactose, therefore it would test positive for lactose fermentation in biochemical tests. This bacterium produces acid and gas during lactose fermentation, which can be detected using appropriate methods such as the MacConkey agar test.


How do you make a soy milkshake?

I would use soy milk and whatever flavor of soy or lactose free ice cream. If the lactose is the reason, breyers makes a really good lactose free vanilla.


Why would a person be prescribed lactose?

To stop them being constipated.


What sugar might be present in a sweet tasting food that tests negative with the Benedicts reagent?

Sucrose. Sucrose is a disaccharide therefore does not have free electrons in the sugar to react with the Benedict reagent. Glucose has free electrons therefore shows positive with the Benedict reagent.