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Which of the following statements about carbohydrates is correct? A) Glyceraldehyde is a monosaccharide containing three carbon atoms B) All carbohydrates contain carbon, oxygen, hydrogen, and nitrogen C) Carbohydrates in plant organisms have only a structural function D) Ribose and deoxyribose are six-carbon sugars E) Galactose is a disaccharide formed by the union of a glucose and a lactose molecule

Question

Which of the following statements about carbohydrates is correct? A) Glyceraldehyde is a monosaccharide containing three carbon atoms B) All carbohydrates contain carbon, oxygen, hydrogen, and nitrogen C) Carbohydrates in plant organisms have only a structural function D) Ribose and deoxyribose are six-carbon sugars E) Galactose is a disaccharide formed by the union of a glucose and a lactose molecule

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Solution

The correct statement about carbohydrates is A) Glyceraldehyde is a monosaccharide containing three carbon atoms.

Here's why the other options are incorrect:

B) Not all carbohydrates contain nitrogen. They primarily contain carbon, hydrogen, and oxygen.

C) Carbohydrates in plant organisms do not only have a structural function. They also serve as a source of energy.

D) Ribose and deoxyribose are not six-carbon sugars. They are pentoses, meaning they contain five carbon atoms.

E) Galactose is not a disaccharide. It is a monosaccharide. Lactose is a disaccharide that is composed of glucose and galactose.

This problem has been solved

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