Biology Tuition Singapore – Chemicals of Life Misconception

Misconception 1

Benedict’s test can be used to detect the presence of disaccharides and monosaccharides.

Correct Concept

Benedict’s test can only be used to test for reducing sugars. Sucrose is a disaccharide but not a reducing sugar, and so cannot be detected using this test.

Misconception 2

We acquire fats through our diet only.

Correct Concept

Our body can meet most of its fat requirements by manufacturing fats from the excess carbohydrates we consume

Misconception 3

Consuming fats is bad for health as it can cause a rise in blood cholesterol levels

Correct Concept

Fats should be consumed in moderation. Saturated fats are bad for health because they can cause a rise in blood cholesterol levels and a higher risk of heart diseases. However; consuming a certain amount of unsaturated fats is helpful in reducing the levels of cholesterol

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