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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • The number of isomers of glucose is…

    Question: The number of isomers of glucose is…

    Options:

    2
    4
    8
    16

    ✅Explanation: Glucose, a six-carbon sugar crucial for cellular energy, has four chiral carbon atoms. These chiral carbons, each attached to four different groups, create opportunities for stereoisomerism. Since each chiral carbon can exist in two configurations (R or S), the total number of possible stereoisomers for glucose is calculated as 2 raised to the power of the number of chiral carbons. Hence, glucose has 2^4 = 16 potential stereoisomers. However, not all of these are biologically relevant. The most common and naturally occurring form is D-glucose, a key energy source for living organisms.

    🔑Key Points::
    -Glucose is an aldohexose and is also known as dextrose.
    – It is the monomer of many of the larger carbohydrates, namely starch, and cellulose.
    -Its molecular formula was found to be C6H12O6, which means glucose is 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
    -On prolonged heating with HI, it forms n-hexane, suggesting that all six carbon atoms are linked in a straight chain.
    -Glucose or sucrose are soluble in water.

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