Question

a disaccharide is a carbohydrate made of two monosaccharides bonded together. one example of a disaccharide is sucrose. in plant cells, glucose and fructose can react to form sucrose. plants with high levels of sucrose, like beets and sugar cane, are harvested by people to make granulated sugar for baking and cooking. the model shows the chemical structure of sucrose. select the true statements. beets are a source of sucrose. fructose and glucose have the same chemical structure. sucrose can be made in plant cells. monosaccharides are made by joining two disaccharides.

Explanation:

1. For "Beets are a source of sucrose": The text says "Plants with high levels of sucrose, like beets and sugar cane...", so this is true.
2. For "Fructose and glucose have the same chemical structure": Looking at the diagrams, glucose and fructose have different ring structures and atom arrangements, so this is false.
3. For "Sucrose can be made in plant cells": The text states "In plant cells, glucose and fructose can react to form sucrose", so this is true.
4. For "Monosaccharides are made by joining two disaccharides": A disaccharide is made of two monosaccharides (opposite of this statement), so this is false.

Answer:

• Beets are a source of sucrose. (True)
• Fructose and glucose have the same chemical structure. (False)
• Sucrose can be made in plant cells. (True)
• Monosaccharides are made by joining two disaccharides. (False)

The true statements are: "Beets are a source of sucrose" and "Sucrose can be made in plant cells".