QQuestionBiochemistry
QuestionBiochemistry
"Which of the following best describes a disaccharide?
It is two monosaccharides joined together.
It is a group of monosaccharide pairs.
It is two trisaccharides joined together.
It is many monosaccharides joined together."
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Answer
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Step 1:: Identify the definition of a disaccharide
A disaccharide is a type of carbohydrate that consists of two monosaccharides joined together through a glycosidic bond.
Step 2:: Eliminate incorrect options
Option B: "It is a group of monosaccharide pairs." – This is incorrect because a disaccharide is specifically two monosaccharides joined together, not just a group of them. Option C: "It is two trisaccharides joined together." – This is incorrect because a trisaccharide consists of three monosaccharides, not two. Option D: "It is many monosaccharides joined together." – This is incorrect because a disaccharide is specifically two monosaccharides joined together, not many.
Step 3:: Select the correct definition
The correct answer is: "It is two monosaccharides joined together."
Final Answer
The best description of a disaccharide is "It is two monosaccharides joined together."
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