Edexcel IAL Carbs and Water Quiz

What is the primary energy storage molecule in animals?

• A. Amylose

• B. Amylopectin

• C. Starch

• D. Glycogen

What are polysaccharides?

• A. Long chains of sugar units

• B. Disaccharides

• C. Single sugar molecules

• D. Proteins

How is sucrose formed?

• A. Condensation of two glucose molecules

• B. Condensation of glucose and fructose

• C. Condensation of glucose and galactose

• D. Hydrolysis of glucose

Lactose is formed by the condensation of which two monosaccharides?

• A. Glucose and fructose

• B. Glucose and galactose

• C. Glucose and maltose

• D. Fructose and galactose

What type of molecule is glucose?

• A. Protein

• B. Lipid

• C. Carbohydrate

• D. Nucleic acid

How are monosaccharides joined together to form disaccharides and polysaccharides?

• A. Through condensation reactions

• B. Through hydrolysis reactions

• C. Through respiration reactions

• D. Through fermentation reactions

What is the function of water in hydrolysis reactions of polysaccharides?

• A. To release energy

• B. To join molecules together

• C. To break glycosidic bonds

• D. To form a permanent dipole

What is maltose?

• A. A monosaccharide

• B. A trisaccharide

• C. A disaccharide

• D. A polysaccharide

What is the structure of amylose?

• A. Unbranched chain of glucose molecules

• B. Branched chain of glucose molecules

• C. Chain of fructose molecules

• D. Chain of galactose molecules

What is amylopectin?

• A. Unbranched chain of glucose molecules

• B. Branched chain of glucose molecules

• C. Mixture of glucose and fructose

• D. Mixture of glucose and galactose