monosaccharides are the building blocks of carbohydrates. they may be found alone or combined with other…

monosaccharides are the building blocks of carbohydrates. they may be found alone or combined with other molecules in fruits, vegetables, dairy products, and grains.\nthe model shows the chemical structures of three monosaccharides: glucose, fructose, and galactose.\ncompare glucose, fructose, and galactose.\n| | glucose | fructose | galactose |\n|--|--|--|--| \n| has 12 hydrogen and 6 oxygen atoms | | | |\n| is a monosaccharide | | | |\n| has a 6 - atom ring | | | |

monosaccharides are the building blocks of carbohydrates. they may be found alone or combined with other molecules in fruits, vegetables, dairy products, and grains.\nthe model shows the chemical structures of three monosaccharides: glucose, fructose, and galactose.\ncompare glucose, fructose, and galactose.\n| | glucose | fructose | galactose |\n|--|--|--|--| \n| has 12 hydrogen and 6 oxygen atoms | | | |\n| is a monosaccharide | | | |\n| has a 6 - atom ring | | | |

Answer

Explanation:

Step1: Analyze molecular formula

The molecular formula of glucose, fructose and galactose is $C_{6}H_{12}O_{6}$, so all have 12 hydrogen and 6 oxygen atoms.

Step2: Recall definition of monosaccharide

Monosaccharides are the building - blocks of carbohydrates. Glucose, fructose and galactose are all monosaccharides.

Step3: Examine ring - structures

Glucose and galactose have 6 - atom rings, while fructose has a 5 - atom ring.

Answer:

glucose fructose galactose
has 12 hydrogen and 6 oxygen atoms √ √ √
is a monosaccharide √ √ √
has a 6 - atom ring √ × √