Question

plants produce the polysaccharide cellulose, which provides structural support for cell walls. cellulose is made from many glucose monosaccharides linked side by side in a long chain. these long chains pack together in parallel rows.
celluloses structure gives it strength and rigidity and makes it difficult to break down. in fact, while animals consume cellulose whenever they eat plants, most animals cannot actually digest cellulose. in humans, cellulose helps push food through the digestive tract and supports gut health. people call cellulose in foods dietary fiber.
diagram of cellulose structure and cellulose fibers
describe the structure and function of cellulose. select the true statements.

• cellulose contains carbon, hydrogen, and oxygen.
• cellulose is easily digested by most animals.
• the long, parallel polymer chains in cellulose provide structure for cell walls.
• cellulose is made from many units of the monosaccharide glucose.

Explanation:

1. For "Cellulose contains carbon, hydrogen, and oxygen": The structure of glucose (monomer of cellulose) has C, H, O, so cellulose (polymer of glucose) also has these elements. This is true.
2. For "Cellulose is easily digested by most animals": The text says "most animals cannot actually digest cellulose", so this is false.
3. For "The long, parallel polymer chains in cellulose provide structure for cell walls": The text states "Cellulose is made from many glucose monosaccharides linked side by side in a long chain. These long chains pack together in parallel rows" and "provides structural support for cell walls", so this is true.
4. For "Cellulose is made from many units of the monosaccharide glucose": The text says "Cellulose is made from many glucose monosaccharides linked side by side in a long chain", so this is true.

So the true statements are:

• Cellulose contains carbon, hydrogen, and oxygen.
• The long, parallel polymer chains in cellulose provide structure for cell walls.
• Cellulose is made from many units of the monosaccharide glucose.

Answer:

• Cellulose contains carbon, hydrogen, and oxygen.
• The long, parallel polymer chains in cellulose provide structure for cell walls.
• Cellulose is made from many units of the monosaccharide glucose.