Identifying Disaccharides - Biochemistry
Card 1 of 28
Which reducing sugar(s) is/are formed from two glucose molecules connected by a 1 to 4 linkage?
Which reducing sugar(s) is/are formed from two glucose molecules connected by a 1 to 4 linkage?
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Maltose, made from the breakdown of starch, contains a 1 to 4 alpha linkage, and cellobiose, made from the breakdown of cellulose, contains a 1 to 4 beta linkage. Both are disaccharides with different shapes and different properties.
Maltose, made from the breakdown of starch, contains a 1 to 4 alpha linkage, and cellobiose, made from the breakdown of cellulose, contains a 1 to 4 beta linkage. Both are disaccharides with different shapes and different properties.
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Lactose intolerance is a very common disorder, which involves a decrease in the function of the enzyme lactase. Which of the following should be avoided in a patient with lactose intolerance?
Lactose intolerance is a very common disorder, which involves a decrease in the function of the enzyme lactase. Which of the following should be avoided in a patient with lactose intolerance?
Tap to reveal answer
Lactose is a disaccharide that needs to be broken down to its monosaccharide components in the gut (so that it can be absorbed). Lactose is made up of galactose and glucose monosaccharide units. An enzyme called lactase, found on the intestinal walls, is used to break down lactose to galactose and glucose. A person with lactose intolerance lacks lactase and, therefore, cannot break down lactose to its components. This leads to malabsorption of lactose. However, there is no problem with galactose and glucose absorption. This means that a patient with lactose intolerance can still digest galactose and glucose if given separately.
Lactose is a disaccharide that needs to be broken down to its monosaccharide components in the gut (so that it can be absorbed). Lactose is made up of galactose and glucose monosaccharide units. An enzyme called lactase, found on the intestinal walls, is used to break down lactose to galactose and glucose. A person with lactose intolerance lacks lactase and, therefore, cannot break down lactose to its components. This leads to malabsorption of lactose. However, there is no problem with galactose and glucose absorption. This means that a patient with lactose intolerance can still digest galactose and glucose if given separately.
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Which of the following substances are found in fructose?
Which of the following substances are found in fructose?
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Fructose is a monosaccharide; therefore, it is only made up of one type of carbohydrate. Disaccharides are made up of two types of monosaccharides. For example, lactose is made up of galactose and glucose whereas sucrose is made up of glucose and fructose. Polysaccharides are made up of multiple units of monosaccaharides.
Fructose is a monosaccharide; therefore, it is only made up of one type of carbohydrate. Disaccharides are made up of two types of monosaccharides. For example, lactose is made up of galactose and glucose whereas sucrose is made up of glucose and fructose. Polysaccharides are made up of multiple units of monosaccaharides.
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Which of the following is not a disaccharide?
Which of the following is not a disaccharide?
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Review the specific types of monosaccharides and glycosidic bonds that are involved in these disaccharides. Remember that disaccharides are formed upon dehydration synthesis of two monosaccharides.
Maltose is composed of two glucose monomers with an 
1-4 linkage.
Cellobiose is composed of two glucose monomers with a 
1-4 linkage.
Sucrose is composed of one glucose monomer and one fructose monomer with an 
1-2 linkage.
Lactose is composed of one galactose monomer and one glucose monomer with a 
1-4 linkage.
Review the specific types of monosaccharides and glycosidic bonds that are involved in these disaccharides. Remember that disaccharides are formed upon dehydration synthesis of two monosaccharides.
Maltose is composed of two glucose monomers with an
Cellobiose is composed of two glucose monomers with a
Sucrose is composed of one glucose monomer and one fructose monomer with an
Lactose is composed of one galactose monomer and one glucose monomer with a
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Maltose is a disaccharide composed of which two monosaccharides?
Maltose is a disaccharide composed of which two monosaccharides?
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Maltose, which is made up of two glucose monomers joined by an alpha-1,4 linkage, is the correct answer. On the other hand, lactose is made up of one glucose monomer and one galactose monomer, and sucrose is made up of one glucose monomer and one fructose monomer.
Maltose, which is made up of two glucose monomers joined by an alpha-1,4 linkage, is the correct answer. On the other hand, lactose is made up of one glucose monomer and one galactose monomer, and sucrose is made up of one glucose monomer and one fructose monomer.
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Hypoglycemia is a disorder that signifies low levels of glucose in the blood. In some cases of hypoglycemia, glucose levels can be brought back to normal via consumption of sugars. What sugar(s) can be administered to a patient with hypoglycemia?
I. Lactose
II. Galactose
III. Sucrose
Hypoglycemia is a disorder that signifies low levels of glucose in the blood. In some cases of hypoglycemia, glucose levels can be brought back to normal via consumption of sugars. What sugar(s) can be administered to a patient with hypoglycemia?
I. Lactose
II. Galactose
III. Sucrose
Tap to reveal answer
As the question states, hypoglycemia is characterized by low levels of glucose in the blood. To bring the glucose levels back to normal, one can ingest foods that contain high amounts of glucose. To solve this question we need to decide which of the stated options can be broken down to glucose. Lactose is a disaccharide that is made up of glucose and galactose. An enzyme, called lactase, breaks down lactose to its components, which can then be absorbed by the intestinal cells; therefore, ingesting glucose will increase glucose levels in the blood. Similarly, sucrose is a disaccharide made up of fructose and glucose; therefore, ingesting sucrose will also increase glucose levels in the blood.
Galactose is a monosaccharide and, therefore, cannot be broken down to any further. It is absorbed as galactose by the intestinal cells. This will not increase the concentration of glucose in the blood.
As the question states, hypoglycemia is characterized by low levels of glucose in the blood. To bring the glucose levels back to normal, one can ingest foods that contain high amounts of glucose. To solve this question we need to decide which of the stated options can be broken down to glucose. Lactose is a disaccharide that is made up of glucose and galactose. An enzyme, called lactase, breaks down lactose to its components, which can then be absorbed by the intestinal cells; therefore, ingesting glucose will increase glucose levels in the blood. Similarly, sucrose is a disaccharide made up of fructose and glucose; therefore, ingesting sucrose will also increase glucose levels in the blood.
Galactose is a monosaccharide and, therefore, cannot be broken down to any further. It is absorbed as galactose by the intestinal cells. This will not increase the concentration of glucose in the blood.
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Which of the following sugars is composed of glucose and galactose?
Which of the following sugars is composed of glucose and galactose?
Tap to reveal answer
To answer this question, we'll need to have some background information on each of the sugars shown in the answer choices.
A glycosidic bond between glucose and galactose will produce the disaccharide lactose, which is thus the correct answer.
Sucrose is a disaccharide composed of glucose and fructose. Maltose is also a disaccharide composed of two glucose molecules. Moreover, fructose and xylose are monosaccharides.
To answer this question, we'll need to have some background information on each of the sugars shown in the answer choices.
A glycosidic bond between glucose and galactose will produce the disaccharide lactose, which is thus the correct answer.
Sucrose is a disaccharide composed of glucose and fructose. Maltose is also a disaccharide composed of two glucose molecules. Moreover, fructose and xylose are monosaccharides.
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Which reducing sugar(s) is/are formed from two glucose molecules connected by a 1 to 4 linkage?
Which reducing sugar(s) is/are formed from two glucose molecules connected by a 1 to 4 linkage?
Tap to reveal answer
Maltose, made from the breakdown of starch, contains a 1 to 4 alpha linkage, and cellobiose, made from the breakdown of cellulose, contains a 1 to 4 beta linkage. Both are disaccharides with different shapes and different properties.
Maltose, made from the breakdown of starch, contains a 1 to 4 alpha linkage, and cellobiose, made from the breakdown of cellulose, contains a 1 to 4 beta linkage. Both are disaccharides with different shapes and different properties.
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Lactose intolerance is a very common disorder, which involves a decrease in the function of the enzyme lactase. Which of the following should be avoided in a patient with lactose intolerance?
Lactose intolerance is a very common disorder, which involves a decrease in the function of the enzyme lactase. Which of the following should be avoided in a patient with lactose intolerance?
Tap to reveal answer
Lactose is a disaccharide that needs to be broken down to its monosaccharide components in the gut (so that it can be absorbed). Lactose is made up of galactose and glucose monosaccharide units. An enzyme called lactase, found on the intestinal walls, is used to break down lactose to galactose and glucose. A person with lactose intolerance lacks lactase and, therefore, cannot break down lactose to its components. This leads to malabsorption of lactose. However, there is no problem with galactose and glucose absorption. This means that a patient with lactose intolerance can still digest galactose and glucose if given separately.
Lactose is a disaccharide that needs to be broken down to its monosaccharide components in the gut (so that it can be absorbed). Lactose is made up of galactose and glucose monosaccharide units. An enzyme called lactase, found on the intestinal walls, is used to break down lactose to galactose and glucose. A person with lactose intolerance lacks lactase and, therefore, cannot break down lactose to its components. This leads to malabsorption of lactose. However, there is no problem with galactose and glucose absorption. This means that a patient with lactose intolerance can still digest galactose and glucose if given separately.
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Which of the following substances are found in fructose?
Which of the following substances are found in fructose?
Tap to reveal answer
Fructose is a monosaccharide; therefore, it is only made up of one type of carbohydrate. Disaccharides are made up of two types of monosaccharides. For example, lactose is made up of galactose and glucose whereas sucrose is made up of glucose and fructose. Polysaccharides are made up of multiple units of monosaccaharides.
Fructose is a monosaccharide; therefore, it is only made up of one type of carbohydrate. Disaccharides are made up of two types of monosaccharides. For example, lactose is made up of galactose and glucose whereas sucrose is made up of glucose and fructose. Polysaccharides are made up of multiple units of monosaccaharides.
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Which of the following is not a disaccharide?
Which of the following is not a disaccharide?
Tap to reveal answer
Review the specific types of monosaccharides and glycosidic bonds that are involved in these disaccharides. Remember that disaccharides are formed upon dehydration synthesis of two monosaccharides.
Maltose is composed of two glucose monomers with an 1-4 linkage.
Cellobiose is composed of two glucose monomers with a 1-4 linkage.
Sucrose is composed of one glucose monomer and one fructose monomer with an 1-2 linkage.
Lactose is composed of one galactose monomer and one glucose monomer with a 1-4 linkage.
Review the specific types of monosaccharides and glycosidic bonds that are involved in these disaccharides. Remember that disaccharides are formed upon dehydration synthesis of two monosaccharides.
Maltose is composed of two glucose monomers with an
Cellobiose is composed of two glucose monomers with a
Sucrose is composed of one glucose monomer and one fructose monomer with an
Lactose is composed of one galactose monomer and one glucose monomer with a
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Maltose is a disaccharide composed of which two monosaccharides?
Maltose is a disaccharide composed of which two monosaccharides?
Tap to reveal answer
Maltose, which is made up of two glucose monomers joined by an alpha-1,4 linkage, is the correct answer. On the other hand, lactose is made up of one glucose monomer and one galactose monomer, and sucrose is made up of one glucose monomer and one fructose monomer.
Maltose, which is made up of two glucose monomers joined by an alpha-1,4 linkage, is the correct answer. On the other hand, lactose is made up of one glucose monomer and one galactose monomer, and sucrose is made up of one glucose monomer and one fructose monomer.
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Hypoglycemia is a disorder that signifies low levels of glucose in the blood. In some cases of hypoglycemia, glucose levels can be brought back to normal via consumption of sugars. What sugar(s) can be administered to a patient with hypoglycemia?
I. Lactose
II. Galactose
III. Sucrose
Hypoglycemia is a disorder that signifies low levels of glucose in the blood. In some cases of hypoglycemia, glucose levels can be brought back to normal via consumption of sugars. What sugar(s) can be administered to a patient with hypoglycemia?
I. Lactose
II. Galactose
III. Sucrose
Tap to reveal answer
As the question states, hypoglycemia is characterized by low levels of glucose in the blood. To bring the glucose levels back to normal, one can ingest foods that contain high amounts of glucose. To solve this question we need to decide which of the stated options can be broken down to glucose. Lactose is a disaccharide that is made up of glucose and galactose. An enzyme, called lactase, breaks down lactose to its components, which can then be absorbed by the intestinal cells; therefore, ingesting glucose will increase glucose levels in the blood. Similarly, sucrose is a disaccharide made up of fructose and glucose; therefore, ingesting sucrose will also increase glucose levels in the blood.
Galactose is a monosaccharide and, therefore, cannot be broken down to any further. It is absorbed as galactose by the intestinal cells. This will not increase the concentration of glucose in the blood.
As the question states, hypoglycemia is characterized by low levels of glucose in the blood. To bring the glucose levels back to normal, one can ingest foods that contain high amounts of glucose. To solve this question we need to decide which of the stated options can be broken down to glucose. Lactose is a disaccharide that is made up of glucose and galactose. An enzyme, called lactase, breaks down lactose to its components, which can then be absorbed by the intestinal cells; therefore, ingesting glucose will increase glucose levels in the blood. Similarly, sucrose is a disaccharide made up of fructose and glucose; therefore, ingesting sucrose will also increase glucose levels in the blood.
Galactose is a monosaccharide and, therefore, cannot be broken down to any further. It is absorbed as galactose by the intestinal cells. This will not increase the concentration of glucose in the blood.
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Which of the following sugars is composed of glucose and galactose?
Which of the following sugars is composed of glucose and galactose?
Tap to reveal answer
To answer this question, we'll need to have some background information on each of the sugars shown in the answer choices.
A glycosidic bond between glucose and galactose will produce the disaccharide lactose, which is thus the correct answer.
Sucrose is a disaccharide composed of glucose and fructose. Maltose is also a disaccharide composed of two glucose molecules. Moreover, fructose and xylose are monosaccharides.
To answer this question, we'll need to have some background information on each of the sugars shown in the answer choices.
A glycosidic bond between glucose and galactose will produce the disaccharide lactose, which is thus the correct answer.
Sucrose is a disaccharide composed of glucose and fructose. Maltose is also a disaccharide composed of two glucose molecules. Moreover, fructose and xylose are monosaccharides.
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Which of the following is not a disaccharide?
Which of the following is not a disaccharide?
Tap to reveal answer
Review the specific types of monosaccharides and glycosidic bonds that are involved in these disaccharides. Remember that disaccharides are formed upon dehydration synthesis of two monosaccharides.
Maltose is composed of two glucose monomers with an 1-4 linkage.
Cellobiose is composed of two glucose monomers with a 1-4 linkage.
Sucrose is composed of one glucose monomer and one fructose monomer with an 1-2 linkage.
Lactose is composed of one galactose monomer and one glucose monomer with a 1-4 linkage.
Review the specific types of monosaccharides and glycosidic bonds that are involved in these disaccharides. Remember that disaccharides are formed upon dehydration synthesis of two monosaccharides.
Maltose is composed of two glucose monomers with an
Cellobiose is composed of two glucose monomers with a
Sucrose is composed of one glucose monomer and one fructose monomer with an
Lactose is composed of one galactose monomer and one glucose monomer with a
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Maltose is a disaccharide composed of which two monosaccharides?
Maltose is a disaccharide composed of which two monosaccharides?
Tap to reveal answer
Maltose, which is made up of two glucose monomers joined by an alpha-1,4 linkage, is the correct answer. On the other hand, lactose is made up of one glucose monomer and one galactose monomer, and sucrose is made up of one glucose monomer and one fructose monomer.
Maltose, which is made up of two glucose monomers joined by an alpha-1,4 linkage, is the correct answer. On the other hand, lactose is made up of one glucose monomer and one galactose monomer, and sucrose is made up of one glucose monomer and one fructose monomer.
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Which reducing sugar(s) is/are formed from two glucose molecules connected by a 1 to 4 linkage?
Which reducing sugar(s) is/are formed from two glucose molecules connected by a 1 to 4 linkage?
Tap to reveal answer
Maltose, made from the breakdown of starch, contains a 1 to 4 alpha linkage, and cellobiose, made from the breakdown of cellulose, contains a 1 to 4 beta linkage. Both are disaccharides with different shapes and different properties.
Maltose, made from the breakdown of starch, contains a 1 to 4 alpha linkage, and cellobiose, made from the breakdown of cellulose, contains a 1 to 4 beta linkage. Both are disaccharides with different shapes and different properties.
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Lactose intolerance is a very common disorder, which involves a decrease in the function of the enzyme lactase. Which of the following should be avoided in a patient with lactose intolerance?
Lactose intolerance is a very common disorder, which involves a decrease in the function of the enzyme lactase. Which of the following should be avoided in a patient with lactose intolerance?
Tap to reveal answer
Lactose is a disaccharide that needs to be broken down to its monosaccharide components in the gut (so that it can be absorbed). Lactose is made up of galactose and glucose monosaccharide units. An enzyme called lactase, found on the intestinal walls, is used to break down lactose to galactose and glucose. A person with lactose intolerance lacks lactase and, therefore, cannot break down lactose to its components. This leads to malabsorption of lactose. However, there is no problem with galactose and glucose absorption. This means that a patient with lactose intolerance can still digest galactose and glucose if given separately.
Lactose is a disaccharide that needs to be broken down to its monosaccharide components in the gut (so that it can be absorbed). Lactose is made up of galactose and glucose monosaccharide units. An enzyme called lactase, found on the intestinal walls, is used to break down lactose to galactose and glucose. A person with lactose intolerance lacks lactase and, therefore, cannot break down lactose to its components. This leads to malabsorption of lactose. However, there is no problem with galactose and glucose absorption. This means that a patient with lactose intolerance can still digest galactose and glucose if given separately.
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Which of the following substances are found in fructose?
Which of the following substances are found in fructose?
Tap to reveal answer
Fructose is a monosaccharide; therefore, it is only made up of one type of carbohydrate. Disaccharides are made up of two types of monosaccharides. For example, lactose is made up of galactose and glucose whereas sucrose is made up of glucose and fructose. Polysaccharides are made up of multiple units of monosaccaharides.
Fructose is a monosaccharide; therefore, it is only made up of one type of carbohydrate. Disaccharides are made up of two types of monosaccharides. For example, lactose is made up of galactose and glucose whereas sucrose is made up of glucose and fructose. Polysaccharides are made up of multiple units of monosaccaharides.
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Hypoglycemia is a disorder that signifies low levels of glucose in the blood. In some cases of hypoglycemia, glucose levels can be brought back to normal via consumption of sugars. What sugar(s) can be administered to a patient with hypoglycemia?
I. Lactose
II. Galactose
III. Sucrose
Hypoglycemia is a disorder that signifies low levels of glucose in the blood. In some cases of hypoglycemia, glucose levels can be brought back to normal via consumption of sugars. What sugar(s) can be administered to a patient with hypoglycemia?
I. Lactose
II. Galactose
III. Sucrose
Tap to reveal answer
As the question states, hypoglycemia is characterized by low levels of glucose in the blood. To bring the glucose levels back to normal, one can ingest foods that contain high amounts of glucose. To solve this question we need to decide which of the stated options can be broken down to glucose. Lactose is a disaccharide that is made up of glucose and galactose. An enzyme, called lactase, breaks down lactose to its components, which can then be absorbed by the intestinal cells; therefore, ingesting glucose will increase glucose levels in the blood. Similarly, sucrose is a disaccharide made up of fructose and glucose; therefore, ingesting sucrose will also increase glucose levels in the blood.
Galactose is a monosaccharide and, therefore, cannot be broken down to any further. It is absorbed as galactose by the intestinal cells. This will not increase the concentration of glucose in the blood.
As the question states, hypoglycemia is characterized by low levels of glucose in the blood. To bring the glucose levels back to normal, one can ingest foods that contain high amounts of glucose. To solve this question we need to decide which of the stated options can be broken down to glucose. Lactose is a disaccharide that is made up of glucose and galactose. An enzyme, called lactase, breaks down lactose to its components, which can then be absorbed by the intestinal cells; therefore, ingesting glucose will increase glucose levels in the blood. Similarly, sucrose is a disaccharide made up of fructose and glucose; therefore, ingesting sucrose will also increase glucose levels in the blood.
Galactose is a monosaccharide and, therefore, cannot be broken down to any further. It is absorbed as galactose by the intestinal cells. This will not increase the concentration of glucose in the blood.
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