Question

monosaccharides are the building blocks of carbohydrates. they may be found alone or combined with other molecules in fruits, vegetables, dairy products, and grains. the model shows the chemical structures of three monosaccharides: glucose, fructose, and galactose (formula ( ce{c6h12o6} ) for each). compare glucose, fructose, and galactose using the chart:

	glucose	fructose	galactose
is a monosaccharide
has a 6-atom ring

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Explanation:

Step 1: Analyze "has 12 hydrogen and 6 oxygen atoms"

All three (glucose, fructose, galactose) have the formula $C_6H_{12}O_6$, so they all have 12 H and 6 O atoms. So we check all three columns.

Step 2: Analyze "is a monosaccharide"

The text states all three are monosaccharides, so we check all three columns.

Step 3: Analyze "has a 6 - atom ring"

Looking at the structures: glucose and galactose have 6 - atom rings (5 C and 1 O), while fructose has a 5 - atom ring (4 C and 1 O). So we check glucose and galactose columns, leave fructose blank.

Answer:

	glucose	fructose	galactose
is a monosaccharide	$\boldsymbol{\checkmark}$	$\boldsymbol{\checkmark}$	$\boldsymbol{\checkmark}$
has a 6 - atom ring	$\boldsymbol{\checkmark}$		$\boldsymbol{\checkmark}$