Question

the process of linking monosaccharides together to make disaccharides is called dehydration synthesis. dehydration means loss of water. during dehydration synthesis, water is released when two monosaccharides chemically combine. many more monosaccharides can continue to be added to the chain, forming a large molecule called a polysaccharide. the reaction below shows a dehydration synthesis reaction. select the true statements. disaccharides break into monosaccharides during dehydration synthesis. many monosaccharides combine by dehydration synthesis to make a polysaccharide. water is a product of a dehydration synthesis reaction. long chains of monosaccharides form a disaccharide.

Explanation:

1. Analyze the first statement: Dehydration synthesis is for combining monosaccharides into disaccharides (or larger), not breaking disaccharides into monosaccharides (that's hydrolysis). So this statement is false.
2. Analyze the second statement: The text says "Many more monosaccharides can continue to be added to the chain, forming a large molecule called a polysaccharide" via dehydration synthesis. So this statement is true.
3. Analyze the third statement: The reaction shows water is released (a product) during dehydration synthesis, and the text also says "water is released when two monosaccharides chemically combine". So this statement is true.
4. Analyze the fourth statement: A disaccharide is formed from two monosaccharides, while a polysaccharide is formed from many (long chains). So this statement is false.

Answer:

The true statements are:

• Many monosaccharides combine by dehydration synthesis to make a polysaccharide.
• Water is a product of a dehydration synthesis reaction.