A student investigates the effect of enzyme concentration on the activity of catalase.
The table shows the student's results.
Table
| Enzyme concentration in %\%% | Volume of oxygen collected in 1 minute in cm3\text{cm}^3cm3 |
|---|---|
| 0.5 | 6.0 |
| 1.0 | 12.0 |
| 1.5 | 18.0 |
| 2.0 | 24.0 |
The student repeats the investigation using an enzyme concentration of 1.2%.
Predict the volume of oxygen that would be collected in 1 minute.
12.0 cm312.0\ \text{cm}^312.0 cm3
13.2 cm313.2\ \text{cm}^313.2 cm3
14.4 cm314.4\ \text{cm}^314.4 cm3
18.0 cm318.0\ \text{cm}^318.0 cm3
184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.