AQA GCSE Enzyme Rate Calculations(Biology)
Practice Questions
1. Catalase reacting with hydrogen peroxide will produce 60cm3 of oxygen gas in 90 seconds. Calculate the rate of reaction in cm3/s
Rate of reaction = 60/90 = 0.67cm3/s
2.Use the graph below to answer the following question
2a. Draw a tangent to the line, calculate the rate at 5 seconds
Rate of reaction = 15/6 = 2.5 cm3/s
2b. Describe how the rate changes as time increases
As time increases rate of reaction will decrease because the gradient is decreasing.
Factors affecting the rate of photosynthesis
Measuring & calculating rates of photosynthesis
Inverse square law and photosynthesis
Economics of enhancing the conditions in greenhouses
Investigating the effect of light intensity on the rate of photosynthesis
Data analysis and nervous system
The effect of a factor on human reaction time
Controlling blood glucose concentration
Regulating water and nitrogen levels in the body.
Hormones and human reproduction
Using hormones to treat infertility
Control and coordination in plants using hormones
Investigating the effect of light or gravity on the growth of newly germinated seedlings