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Lovely plants!

Lovely plants!. The problem is that this is a massive oversimplification! Photosynthesis also produces ATP. Think pair share. Plants are known as autotrophs . Why?. Autotroph= they don’t feed on anything Make their own food by photosynthesis Photosynthesis is

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Lovely plants!

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  1. Lovely plants! The problem is that this is a massive oversimplification! Photosynthesis also produces ATP Think pair share. Plants are known as autotrophs. Why? Autotroph= they don’t feed on anything Make their own food by photosynthesis Photosynthesis is carbon dioxide + water  glucose + oxygen 6CO2 + 6H2O  C6H12O6 + 6O2

  2. Photosynthesis 3 points to cover this lesson: • Photosynthesis can be split into two separate reactions. • All photosynthesis reactions take place in chloroplasts. • Photosynthesis can still be viewed as a whole process.

  3. Photosynthesis 1. Photosynthesis can be split into two reactions. • These are called the light dependent reaction (LDR) and the light independent reaction (LIR). • The two reactions are linked. The light dependent reaction happens first and this feeds into the light independent reaction.

  4. The light dependent reaction This is chlorophyll Relate these to GCSE equation

  5. The light independent reaction Light dependent reaction makes ATP (energy). This is then used in the light independent reaction to make glucose which can then be used by the organism. Relate these to GCSE equation

  6. What happens to the glucose produced during the light independent reaction? Some used up for respiration

  7. Photosynthesis 2. All photosynthesis reactions take place in chloroplasts. Chlorophyll is contained in thylakoids = LDR LIR = stroma

  8. Photosynthesis 3. We can still view photosynthesis as a whole process. • The light dependent reaction (LDR) and the light independent reaction (LIR) link together. • The LDR uses water and produces oxygen. • The LIR uses carbon dioxide and produces glucose. carbon dioxide + water  glucose + oxygen

  9. Looking at the process as a whole allows us to understand limiting factors.

  10. Optimising the conditions for photosynthesis What can be done to increase the growth rate of plants on a commercial scale?

  11. Photosynthesis 3 points to cover this lesson: • Photosynthesis can be split into two separate reactions. • All photosynthesis reactions take place in chloroplasts. • Photosynthesis can still be viewed as a whole process.

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