Photosynthesis Higher Biology > Unit 1 SQA HIGHER BIOLOGY
Learning Content <ul><li>The role of light and photosynthetic pigments. </li></ul><ul><ul><li>Absorption, transmission and...
Learning Content <ul><li>The light dependent stage and carbon fixation. </li></ul><ul><ul><li>The detailed structure of ch...
Light Absorption <ul><li>Not all of the light that hits a leaf is used for photosynthesis. </li></ul><ul><li>Draw a pie ch...
Absorption Spectra 700 400 nm
Absorption Spectra
Action Spectrum
Absorption Spectra <ul><li>Answer Questions 1 to 4 on Page 37  </li></ul><ul><ul><li>Detailed answer to question 2, includ...
Chemistry of Photosynthesis <ul><li>What are the word and balanced symbol equations for photosynthesis? </li></ul><ul><li>...
Chemistry of Photosynthesis <ul><li>Photosynthesis can be summarised by the following diagram: </li></ul><ul><li>Summarise...
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5. Photosynthesis

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5. Photosynthesis

  1. 1. Photosynthesis Higher Biology > Unit 1 SQA HIGHER BIOLOGY
  2. 2. Learning Content <ul><li>The role of light and photosynthetic pigments. </li></ul><ul><ul><li>Absorption, transmission and reflection of light by a leaf. </li></ul></ul><ul><ul><li>Role of chlorophyll and other photosynthetic pigments. </li></ul></ul><ul><ul><li>Separation of photosynthetic pigments by means of chromatography. </li></ul></ul>
  3. 3. Learning Content <ul><li>The light dependent stage and carbon fixation. </li></ul><ul><ul><li>The detailed structure of chloroplasts should be related to the stages of photosynthesis. </li></ul></ul><ul><ul><li>The location and significance of the light dependent stage. </li></ul></ul><ul><ul><ul><li>The production of ATP and hydrogen (for use in carbon fixation). </li></ul></ul></ul><ul><ul><li>The location and significance of carbon fixation (Calvin cycle). </li></ul></ul><ul><ul><ul><li>The production of glucose as a result of an enzyme-controlled sequence of reactions requiring ATP, hydrogen (from photolysis) and carbon dioxide. </li></ul></ul></ul>
  4. 4. Light Absorption <ul><li>Not all of the light that hits a leaf is used for photosynthesis. </li></ul><ul><li>Draw a pie chart to represent the fate of light striking a leaf. </li></ul><ul><li>What is the pigment absorbing light energy in the leaf? </li></ul><ul><li>Is this the only leaf pigment? </li></ul>
  5. 5. Absorption Spectra 700 400 nm
  6. 6. Absorption Spectra
  7. 7. Action Spectrum
  8. 8. Absorption Spectra <ul><li>Answer Questions 1 to 4 on Page 37 </li></ul><ul><ul><li>Detailed answer to question 2, including graphs. </li></ul></ul><ul><li>What is the benefit to the plant of having a number of pigments? </li></ul><ul><li>Why do most leaves appear green? </li></ul><ul><li>What does it tell you if they aren’t green? </li></ul>
  9. 9. Chemistry of Photosynthesis <ul><li>What are the word and balanced symbol equations for photosynthesis? </li></ul><ul><li>In photosynthesis chlorophyll and other pigment molecules absorb light energy and use it to power a series of reduction reactions. </li></ul><ul><ul><li>What is reduced? </li></ul></ul><ul><ul><li>What is formed? </li></ul></ul>
  10. 10. Chemistry of Photosynthesis <ul><li>Photosynthesis can be summarised by the following diagram: </li></ul><ul><li>Summarise the reactions taking place on the grana shown as A on the diagram. </li></ul><ul><li>Summarise the reactions taking place in the stroma as shown as B on the diagram. </li></ul>

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