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

Explanation:

• The first statement is false as the text says "most animals cannot actually digest cellulose".
• The second statement is true because the text states "Cellulose is made from many glucose monosaccharides".
• The third statement is true as "These long chains pack together in parallel rows" and "provides structural support for cell walls".
• The fourth statement is true. Cellulose, being a carbohydrate (polysaccharide), has the general formula \( (C_6H_{10}O_5)_n \), so it contains carbon, hydrogen, and oxygen.

Answer:

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