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Rate Of Photosynthesis (GCSE Biology)

The following is a GCSE Biology test covering 'Rate Of Photosynthesis' from the broader topic Bioenergetics. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Which color of light is usually absorbed best by chlorophyll and therefore tends to produce a higher rate of photosynthesis?
A student uses a lamp and measures light intensity at various distances, then plots rate vs intensity. The line flattens at high intensity. Which conclusion is most valid?
Which experimental change would test the effect of CO2 concentration on rate of photosynthesis?
Why do leaf discs need to have air removed (e.g., by a syringe/vacuum) before starting the floating assay for photosynthesis?
When using a lamp and a single plant to investigate light intensity, why should the same plant be used for all different distances?
Which of the following describes a limiting factor for photosynthesis?
In a controlled photosynthesis experiment using pondweed, which factor should be kept constant to ensure a fair test when comparing light colours?
Why does the rate of photosynthesis level off (plateau) at high light intensities?
Which of the following is a direct product of the light-dependent reactions that is used in the Calvin cycle (light-independent stage)?
Why are variegated (partly white) leaves useful in investigating photosynthesis and starch production?
Which factor directly provides the energy needed for the light-dependent reactions of photosynthesis?