After chewing on a piece of toast for five minutes, a student noticed a sweet ta

Question

After chewing on a piece of toast for five minutes, a student noticed a sweet taste in her mouth. Explain her observations. Why is D-glucose (dextrose), rather than sucrose, given intravenously to patients? Glucose in the urine may be a symptom of what disease? Explain why infant formulas often contain mixtures of dextrins and maltose rather than starch. a. What polysaccharide consists of alpha-D-glucose units? b. What polysaccharide consists of beta-D-glucose units? List two advantages in using the Clinitest reagent in preference to Benedict's reagent. Why is it necessary that you digest (hydrolyze) starchy food? D-Xylose, on completion of mutarotation, has specific rotation + 18.6 degree. When its aldehyde group is reduced to a -CH_2 OH group, what will the specific rotation of the product be?

Explanation / Answer

Ans 1 . The saliva of our mouth contains an enzyme called as amylase. It helps to break down starch that comes into our mouth during ingestion of food. The starch present in bread toast converted into sugar that is why it tasted sweet.

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