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Sucrose is a double sugar and one molecule of sucrose is broken into one molecule of glucose and one molecule of fructose by the yeast (with and enzyme called invertase) prior to fermentation. From a pure chemical reaction perspective 1kg of can produce slightly more alcohol than 1kg of glucose, but given the right environment yeast can fully ferment both. Most brewers yeast prefers glucose to fructose so the glucose will be tend to be consumed first. Glucose is more expensive than sucrose so sucrose is a more cost effective choice.
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∙ 15y ago
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∙ 11y agoglucose provides the most efficient conversion to ethanol and carbon dioxide.
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What kind of plant makes sugar?
I think you will find it is glucose, the same as in animals, but plants are capable of storing some of it by converting it into a more complex sugar called starch.
Is it false that the energy yield in aerobic respiration is far less than that which results from fermentation?
Fermentation gives you 2 net ATP per glucose... aerobic respiration gives you 36-38 net ATP per glucose... so aerobic gives you more energy than fermentation.
Fermentation is not as energy productive as respiration because?
pyruvate is more reduced than CO2; it still contains much of the energy from glucose
Explain why the TSI medium contains a lower concentration of glucose than of lactose and sucrose?
When any sugar is metabolized under anaerobic conditions (fermentation), there is increased acid production; thus the butt of the tube remains acid for a longer period of time. When glucose only is fermented, acid is produced throughout the medium but due to the relatively low concentration of glucose in the medium and the aerobic metabolism that is present on the slant, nitrogenous metabolic end products soon change the reaction of the slant to alkaline. These alkaline products neutralize the small amounts of acids present in the slant but are unable to neutralize the large amounts acid present in the butt. Thus, the appearance of an alkaline (red) slant and an acid (yellow) butt after 24 hours incubation indicates that the organism is a glucose fermenter but is unable to ferment lactose and sucrose. Bacteria that ferment lactose or sucrose (or both), in addition to glucose, produce such large amounts of acid that the oxidative deamination of protein that may occur in the slant does not yield enough alkaline products to cause a reversion of pH in that region. Thus, these bacteria produce an acid slant and acid butt. The inclusion of sucrose permits separation of certain Proteus organisms which ferment sucrose from the salmonellae since both of these groups of organisms are lactose-negative and both may produce hydrogen sulfide.AC
Which is more efficient in the terms of ATP production aerobic or fermentation?
Both start with glycolysis, which is an anaerobic process that produces a net gain of 2 ATP. Glycolysis can be followed by fermentation or aerobic respiration, depending on the organism and available oxygen for aerobic respiration. If glycolysis is followed by fermentation, no more ATP will be produced, so glycolysis and fermentation produce only 2 ATP for every glucose molecule. However, if aerobic respiration occurs, around 34 to 36 more molecules of ATP can be produced from every glucose molecule. So, aerobic respiration is much more efficient at producing ATP.
Is glucose sugar the sugar you buy from stores?
Sucrose is ordinary table sugar; glucose is simpler and more refined than sucrose.
Why is it reasonable that of the three sugars glucose fructose and sucrose glucose would result in the most activity during the fermentation experiment?
Glucose is the most basic of the sugars so there's less time needed for the yeast to break it down, so more activity faster.
Is glucose or sucrose more easily digested by humans?
Glucose and sucrose are both as easily digested as the other by humans. This is because they are both simple sugars.
Why do athletes drink solutions of glucose rather then solutions of sucrose?
Glucose can be more quickly metabolized, as sucrose is composed of glucose and fructose and must be broken down into simple sugars first.
Why to supply energy in emergency glucose is injected in human body but not sucrose?
Sucrose is a complex carbohydrate while glucose is a simple carbohydrate. Sucrose can be taken but its synthesis takes time by than the person may become more week. Since glucose is already simple there is no need for its synthesis and hence it give instant energy. Therefore glucose is chosen over sucrose.
Does fermentation produce more energy per glucose than cellular respiration?
No.
What are the six more important sugars in nutrition?
glucose, fructose, maltose, galactose, lactose, sucrose
Is sucrose and glucose present in lemon juice?
Fructose is a sugar that is naturally-occurring in fruits. Citrus is very high in fructose. It can be bought in granular form and used as a substitute for sugar. There is no such thing as "fructose acid".
Why are cooked sucrose solution sweeter than uncooked sucrose solution?
During cooking, sucrose hydrolyses into its monomers, glucose and fructose. This mixture is commonly known as "invert sugar". Invert sugar shows more sweetness than sucrose.
What kind of plant makes sugar?
I think you will find it is glucose, the same as in animals, but plants are capable of storing some of it by converting it into a more complex sugar called starch.
Which molecule do you think would be absorbed more easily into your bloodstream from your small intestine a one disaccharide of sucrose or a monosaccharide of glucose?
The glucose monosaccharide would be absorbed more easily than the disaccharide.
What happens during the inversion of sucrose?
Invert Sugar is a mixture of equal parts of Glucose (Dextrose) & Fructose resulting from the hydrolysis of Sugar (Sucrose). It is found naturally in friuts & honey and produced artficially for use in the food industry.
