Question

Which of the following statements is not true about carbohydrate structures?
a. Simple carbohydrates include monosaccharides and disaccharides.
b. Lactose is a disaccharide composed of glucose linked to galactose.
c. Complex carbohydrates are polysaccharides consisting of many glucose units joined together.
d. Maltose is a disaccharide composed of glucose linked to glucose.
e. Sucrose is a disaccharide composed of glucose linked to galactose.

Answer 1

E is the false one as sucrose is made of glucose and fructose ✌

Answer 2

Sucrose is disaccharide composed of glucose linked to galactose is the statement that is not true about carbohydrate structures.

Sucrose is a disaccharide, which means it includes two units of monosaccharide linked together. Each type of disaccharide is composed of different units.

• Maltose : Two units of glucose
• Lactose: One unit of glucose and one of galactose.

In the case of Sucrose, this is composed of one unit of glucose and one unit of fructose. This disaccharide can be found in common sugar, this means the statement "e" is false because sucrose does not have galactose, instead galactose can be found in lactose, which is a different disaccharide.

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