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Define Photosynthesis :
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Write the overall equation for photosynthesis

Main site of photosynthesis:

Photosynthetic Pigments -pigments found in the________________________ of the chloroplast
and they function to _________________________________
The main photosynthetic pigments found in plants are:
1)
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4)

Why is it advantageous for the plant to have more than 1 photosynthetic pigment?
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How do chloroplasts respond to light intensity and what advantage does this has?
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Absorption Spectrum:
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Action Spectra:
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What does the relationship between action and
absorption spectra tell us?
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Chromatography can be used for the separation of leaf pigments
Principles
1) Grind up leaf with a solvent to _______________________________________
2) ‘spot’ the extract onto the ________________________________ of the chromatography
paper
3) Chromatogram is placed into a glass tank containing the solvent
4) The solvent gradually rises up, and the ____________________ are separated depending
upon the relative __________________ and __________________ to the paper
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The loss of electrons is called ____________________

What happens within the photosystems during the light dependent stage?
1) Light hits a leaf
2) _____________ of light enters a chloroplast and reach _______________________
3) the photon strikes a __________________ molecule within an
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4) Electrons are ___________________ and raised to a higher energy level
5) Energy is transferred to neighbouring ______________ molecules
6) This continues until ___________________________ reaches a ________________________
molecule
7) which loses ____ high energy _____________________
8) These are then accepted by an ______________________________________

What is the structure and function of the photosystems?
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Non Cyclic Photophosphorylation
definition;
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1) Light energy hits ______________________
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These are picked up by an electron acceptor and used to ____________________
4) _____ electrons replace ________ electrons
5) _______________________ replaces P680 electrons

Cyclic Photophosphorylation
• involves PS1 only

•
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instead of _____________________, some electrons from PS1 return to the
__________________ via the chain of _________________________________
More ____ is produced, no ____________________ is produced

The Light independent stage- the Calvin Cycle

1) _______________________ combines with a 5C compound
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2) The product is an _________________ 6C compound which breaks down to form 2 molecules
of 3C ____________________________________
3) These are then ______________________ by __________________ to form
___________________________, in a reaction that requires ATP
4) For every 12 molecules of trios phosphate formed, ___ are used to regenerate ________
5) the other __ are used to form ___________________________

Explain how carbon dioxide is used in the production of glycerate-3-phosphate
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Describe how glycerate-3-phosphate is converted to trios phosphate
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State why only some of the trios phosphate produced by the calvin cycle can be used to produce
hexose phosphate
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Outline the main stages of non cyclic photophosphorylation
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Outline the main stages of the Calvin Cycle
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What is the fate of the glucose produced in photosynthesis?
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Outline the main stages of cyclic photophosphorylation
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Outline the differences and similarities between mitochondrial and chloroplast membranes in terms
of generating a proton gradient
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The electron micrograph shows part of a palisade cell, including one chloroplast
Label
• a thylakoid
• one granum
• stroma
Label
• the parts of the chloroplast where the photosynthetic pigments are located
• where the Calvin Cycle reactions occur
• where the light dependent reactions occur
Explain the role of the photosynthetic pigments, and how the use of chromatography allows these
pigments to be separated and identified
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