That would depend upon which enzymes; lactase would break it down, others produce cheese, kefir, etc.
lactose metabolizing enzymes need not be made when lactose is not present.
Enzymes are proteins which act as catalysts and allow complex chemical reactions to occur rapidly. Without enzymes, reactions would not occur quickly enough to allow cells to function effectively. For example, people who are lactose intolerant do not produce enough of the enzymes which break down lactose and therefore cannot digest lactose properly.Sources:Biology courseBrain, Marshall. "How Cells Work." HowStuffWorks. HowStuffWorks, Inc., 2002. Web. 26 Mar. 2011. .
Lactose metabolizing enzymes need not be made when lactose is not present.This means when glucose is present, the cell does not waste energy/resources on creating these enzymes.
Lactase improves the digestion of milk by some people who lack the enzymes, aka lactose intolerance.
Unless they're lactose intolerant, yes, lactase is found in children.
lactose metabolizing enzymes need not be made when lactose is not present.
Lactase.Lactase is essential for digestive hydrolysis of lactose in milk. Deficiency of the enzyme causes lactose intolerance.
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.
lac Z, lac Y, and lac A. Enzymes for the degradation and preparation of lactose for bacterial metabolisms.
Some people don't produce any enzymes, including the one needed to digest lactose
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.
"because the reaction is to slow to make an effect, if a enzyme is added then it can hydrolyse lactose but it can take more than 6 years without the addition of an enzyme" Is bull**** the real answer is because the active site of the two substances are different and so the sucrase becasue Lactose has a different shape/structure which does not fit/bind to active site of enzyme/sucrase.
It has no effect
Enzymes are proteins which act as catalysts and allow complex chemical reactions to occur rapidly. Without enzymes, reactions would not occur quickly enough to allow cells to function effectively. For example, people who are lactose intolerant do not produce enough of the enzymes which break down lactose and therefore cannot digest lactose properly.Sources:Biology courseBrain, Marshall. "How Cells Work." HowStuffWorks. HowStuffWorks, Inc., 2002. Web. 26 Mar. 2011. .
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.
The shape of the enzyme allows it to only accept certain substrates. For example, if you are lactose intolerable you cannot have lactose (a sugar) due to the fact that you do not have lactase (an enzyme) to break the lactose down. Enzymes, themselves, do not, split chemicals the split organic substrates such as carbohydrates, lipids (fats) and proteins.
Lactose intolerant people have a deficiency of an enzyme called lactase, which breaks up the lactose into two monosaccharides called galactose and glucose. These two are easily digestable, whereas lactose is not.