Question

the models show the structures of the carbohydrates cellulose, starch, and glycogen. cellulose branched starch glycogen select the true statements. the parallel chains in cellulose give cellulose its strength and rigidity. glycogen has more branching than starch. cellulose and starch have the same function in plant cells. starch, cellulose, and glycogen are monosaccharides.

Explanation:

• Cellulose: It has parallel chains. These chains are held together by hydrogen bonds, which give cellulose its strength and rigidity, making it suitable for providing structural support in plant cell walls.
• Glycogen vs Starch branching: Glycogen is highly branched. This is an adaptation for rapid release of glucose (e.g., in animals when energy is needed quickly). Starch (both amylose - unbranched and amylopectin - branched) has less branching compared to glycogen.
• Function in plant cells: Cellulose provides structural support (cell wall), while starch is a storage polysaccharide (stores glucose). So, they have different functions.
• Type of saccharide: Starch, cellulose, and glycogen are polysaccharides (made up of many glucose units), not monosaccharides (single sugar units like glucose, fructose).

Answer:

• The parallel chains in cellulose give cellulose its strength and rigidity.
• Glycogen has more branching than starch.