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Question

Which type of sugar is responsible for sweetening in fruits?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Fructose

Fruit Sweetening Sugar Identification

The question asks to identify the specific type of sugar that provides sweetness in fruits. Sugars are carbohydrates that provide energy and taste sweet.

Analyzing Sugar Types in Fruits

  • Lactose: This is milk sugar and is not found in significant amounts in fruits.
  • Maltose: This is malt sugar, primarily found in germinating grains, and is not a major contributor to fruit sweetness.
  • Fructose: Commonly known as fruit sugar, fructose is a simple sugar (monosaccharide) naturally present in fruits and honey. It is notably sweeter than glucose and sucrose, making it the primary source of sweetness in most fruits.
  • Sucrose: This is common table sugar, composed of glucose and fructose. While present in some fruits, fructose is generally the dominant sweetening sugar.

Therefore, fructose is the sugar principally responsible for the characteristic sweet taste of fruits.

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