Honey contains more ___________ relative to glucose, which accounts for its very sweet taste.

Question

BlackTom AI · Accepted Answer

Fructose is sweeter than glucose, so...

1. Relevant knowledge points and concepts
Honey is primarily a mixture of simple sugars, water, and trace compounds. The major monosaccharides in honey are fructose and glucose. Perceived sweetness depends on the specific sugar: fructose tastes sweeter than glucose at the same concentration. Relative sweetness scales (approximate) place sucrose as 100, fructose ~120–140, glucose ~70–80, and galactose substantially lower.

2. Step‑by‑step reasoning
- Identify the dominant sugars in honey: nectar and processed honey typically contain both glucose and fructose in roughly comparable amounts, but many honeys contain a higher proportion of fructose.
- Compare sweetening power: because fructose has a higher relative sweetness than glucose, a solution with more fructose will taste sweeter than one with the same amount of glucose.
- Therefore, if honey contains more fructose relative to glucose, this directly accounts for its very sweet taste.

3. Calculations / intermediate steps
No numerical algebra is required here, but using the relative sweetness scale illustrates the point: for equal molar amounts, fructose (~130 sweetness units) >> glucose (~75 units). Thus replacing glucose with fructose increases perceived sweetness by roughly 50–70%.

4. Why the correct answer is correct
Fructose’s molecular structure interacts with sweet taste receptors more effectively than glucose, producing a stronger sweet sensation. Many types of honey have a higher fructose-to-glucose ratio, which is the biochemical basis for the pronounced sweetness.

5. Why the other options are incorrect
- a. Sucrose: a disaccharide of glucose + fructose; not the major free sugar in honey (bees invert sucrose to monosaccharides).
- b. Maltose: a glucose–glucose disaccharide present only in small amounts in honey.
- c. Galactose: not a major constituent of honey and is less sweet than glucose.

6. Conclusion
Because honey contains more fructose relative to glucose, and fructose is significantly sweeter than glucose, the correct answer is d. Fructose.

Honey contains more ___________ relative to glucose, which accounts for its very sweet taste.单项选择题

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