Rate of reaction
What Rate of reaction means in Biology GCSE, as defined for AQA, OCR.
Definitions of Rate of reaction
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Reference: OCR
The rate of photosynthesis rises as light increases, stays constant at a plateau when another factor limits it, and can be raised by temperature only up to an optimum.
A measure of how quickly starch is broken down, shown by the time taken for starch to disappear, so a shorter time means a faster rate.
Calculated by dividing the change in amount by the time taken, for example rate = volume of gas ÷ time.
Topics that use Rate of reaction
- The human digestive system (AQA GCSE)
- Photosynthesis (OCR GCSE)
Related terms
- denaturation
- Absorption and transport
- active site
- Active site and substrate binding
- Amylase
- Anabolic and catabolic reactions
- Apparatus and measurement skills
- axis scaling
Using Rate of reaction in the exam
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