What specific types of macromolecules are starch and cellulose?

What specific types of macromolecules are starch and cellulose?

Thus starch is a polymer based on glucose monomers. Three classes of polymer are important in plant function: polysaccharides, proteins and nucleic acids. Together with lipids (most of which are not polymers) these molecules make up most of plant structure.

glucose molecules
Starch is a chain of glucose molecules which are bound together, to form a bigger molecule, which is called a polysaccharide. There are two types of polysaccharide in starch: Amylose – a linear chain of glucose. Amylopectin – a highly branched chain of glucose.

Carbohydrates (also called carbs) are a type of macronutrient found in certain foods and drinks. Sugars, starches and fiber are carbohydrates. Other macronutrients include fat and protein. Your body needs these macronutrients to stay healthy.

Secondary navigation. Credit: Starchy foods are our main source of carbohydrate and have an important role in a healthy diet. Starchy foods – such as potatoes, bread, rice, pasta, and cereals – should make up just over a third of the food you eat, as shown by the Eatwell Guide.

Is starch a carbohydrate?

Is starch a carbohydrate protein or lipid?

Polysaccharides may be very large molecules. Starch, glycogen, cellulose, and chitin are examples of polysaccharides. Starch is the stored form of sugars in plants and is made up of amylose and amylopectin (both polymers of glucose).

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