BIOLOGY
CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Glucose and galactose are stereoisomers (have atoms bonded together in the same order, but differently arranged in space). They differ in their stereochemistry at carbon 4. Fructose is a structural isomer of glucose and galactose (has the same atoms, but bonded together in a different order).
Detailed explanation-2: -Final answer: D-glucose and D-galactose are C4 epimers is a true statement.
Detailed explanation-3: -Glucose, fructose and galactose are known as isomers because they have the same chemical formula and they basically vary only in the arrangement of atoms in the molecule.
Detailed explanation-4: -As an example both glucose and fructose are hexoses (C6H12O6) but they have different chemical and physical properties. These types of compounds are called isomers.
Detailed explanation-5: -Galactose is an isomer of glucose. This means that they both share the same formula: C6H12O6.