Biology · Oct / Nov 2023 · Paper 22 · Question 5

A student investigates the use of an enzyme in fruit juice production. The student carries out the following steps: • cuts one apple into small pieces • puts the same number of pieces into each of three beakers, A, B and C • adds 2 cm3 of a dilute enzyme solution to the apple in beakers A and B • adds 2 cm3 of distilled water to the apple in beaker C • places each beaker in a water-bath at a constant temperature for 30 minutes • filters the juice from each beaker into a separate measuring cylinder and records the volume of juice collected in each measuring cylinder.

Read automatically from the paper; the printed page above is exact.