IB B1.1 Carbohydrates and Lipids

What type of glycosidic bond forms branches in amylopectin and glycogen?

• Alpha-1,4-glycosidic bond

• Alpha-1,6-glycosidic bond

• Beta-1,4-glycosidic bond

• Beta-1,6-glycosidic bond

What structural feature allows cellulose to form strong microfibrils?

• Hydrogen bonding between beta-glucose chains

• Branched alpha-glucose structure

• Interaction with glycoproteins

• High solubility in water

What type of glucose isomer alternates orientation in cellulose?

• Alpha-glucose

• Beta-glucose

What reaction breaks polysaccharides into monosaccharides?

• Condensation

• Polymerization

• Oxidation

• Hydrolysis

Why is glucose soluble in water?

• It forms long chains

• It contains many hydrogen atoms

• It has polar hydroxyl groups

• It reacts with other molecules in water

Which storage polysaccharide in animals has more branches than amylopectin?

• Cellulose

• Starch

• Glycogen

• Amylose

What type of glycosidic bonds link glucose molecules in amylose?

• Alpha-1,4-glycosidic bonds

• Alpha-1,6-glycosidic bonds

• Beta-1,4-glycosidic bonds

• Beta-1,6-glycosidic bonds

What is the primary role of glycoproteins in cell membranes?

• Energy storage

• Structural support

• Cell recognition

• Transport of glucose