Lactose is a sugar that is broken down by an enzyme called lactase. This enzyme is produced by cells in the intestinal wall. Some groups of people become lastose intolerant by 2-3 years old.
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No, lactose does not spontaneously break down in water or alcohol. Lactose is broken down by the body. In those with lactose intolerance, it is not always broken down correctly and is expelled from the body.
Lactose functions at the brush border to break down lactose into smaller sugars called glucose and galactose for absorption.
Monosaccharides do not break down lactose; rather, lactose is a disaccharide composed of two monosaccharides: glucose and galactose. The enzyme lactase is responsible for breaking down lactose into these two monosaccharides during digestion. Once lactose is broken down, the resulting monosaccharides can then be absorbed by the body.
They break down lactose and other sugars to lactic acid
no
Their body can't absorb lactose...There are enzymes in your small intestine which break down lactose called lactase. Lactase breaks down lactose into galactose and glucose so your body can then absorb it.
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.
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.
Firstly, I think you phrased this question wrong because lactose is a substrate. It is the job of lactase (and enzyme) to break down lactose. Some people are lactose intolerant because their bodies do not have enough lactase enzymes to break down lactose.
Escherichia coli needs the enzyme β-galactosidase to break down lactose. This enzyme cleaves lactose into its constituent sugars, glucose and galactose, which can then be used by the bacteria as a source of energy.
Since yeast will only have a reaction when it is able to break down an enzyme nothing will happen when it is added to lactose. Lactose does not contain the proper enzymes or glucose to cause a reaction.
Enzymes, like lactase, help break down lactose into glucose and galactose in the digestive system. This helps people with lactose intolerance digest and absorb lactose without experiencing symptoms such as bloating, gas, and diarrhea.