Limiting Factors in Photosynthesis

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Presentation transcript:

Limiting Factors in Photosynthesis IGCSE Combined Science

Group work – concept cartoons!

Rate of photosynthesis

Now have a look at the demonstration of Elodea! Try and answer the following questions as you are given the demonstration What are the effects of changing: Carbon dioxide concentration Temperature Light intensity Be able to give a scientific explanation for each of these factors as well!

What happens when we change these factors? http://kscience.co.uk/animations/photolab.swf http://www.saddleworth.oldham.sch.uk/science/simulations/waterweed.htm

Rate of photosynthesis

Group activity! Can you make a poster summarising the effect of changing Light intensity Carbon dioxide concentration Temperature Your poster must include a sketch graph for each three factors and an explanation of why they affect the rate of photosynthesis!

finished photosynthesis! YAAAAY!! We´ve finished photosynthesis! Copy and complete the following sentences based on your OVERALL understanding of the photosynthesis topic so far... Something I have enjoyed learning is... Something I find difficult is... An example of a test question could be...