Use the following information to answer the question below. I. Test tube containing cane sugar and water . ll…

Step 1: Analyze the question The question describes cane sugar (sucrose) being broken down (hydrolysed) in three setups: with water only, with dilute acid, and with its "degrading enzyme". We need to name the enzyme that hydrolyses cane sugar.

Step 2: Concept Enzymes are named according to the substrate they act on. Each of the common digestive enzymes has its own substrate:

• Rennin: acts on milk protein (casein), curdling milk in infants.
• Erepsin: breaks peptides into amino acids.
• Sucrase (invertase): breaks sucrose (cane sugar) into glucose and fructose.
• Maltase: breaks maltose into two glucose molecules.

Step 3: Solution Cane sugar is chemically sucrose. Its hydrolysis is:

Sucrose + H₂O → Glucose + Fructose

This happens with dilute acid and heat (setup II) or with the enzyme (setup III). The water-only tube (setup I) acts as a control, since there is no significant breakdown without a catalyst. The enzyme that catalyses this reaction is sucrase.

Step 4: Answer The correct option is C. sucrase.

Tip: Remember the pattern "substrate + -ase":

• Sucrose → sucrase
• Maltose → maltase
• Lactose → lactase
• Lipids → lipase

If the question mentions cane sugar, think sucrose, then sucrase.