Where Does The Light Reaction Take Place

Intensive Biology Chapter 7: Photosynthesis Worksheet

Overview:

Light Reaction  Where does the light reaction take place?  What happens when the photosystems absorb sunlight energy?  Where do the electrons from PS I go?  Where do the electrons from PS II go?  What happens as the electrons from PS II are being passed down to PS I?  How does PS I replenish its electrons?  How does PS II replenish its electrons?  What happens to water?  What happens to the H+ protons?  What happens to the oxygen?  How is ATP generated?  The light energy from the sun is converted to what type of energy and stored where?  What are the products of the light reaction?

Calvin Cycle  Where does the Calvin cycle take place?  Before Calvin cycle begins where is the energy stored?  What will the energy be used for?  What is the first part of the Calvin cycle?  What happens during the carbon fixation cycle? How many molecules of what are involved?  What happens to the resulting molecule? How many molecules are present? How many carbon atoms does each molecule have? What are the names of the resulting molecule?  When are the products from the Light Reaction used? What are they used for? What happens after the products from the Light Reactions are used? What is the name of the resulting molecule?  How many of the molecules are used to make glucose? What happens to the remaining molecules?  How many ATP and NADPH are used? 1 7.7 Photosystems capture Solar Power

Photosystem:

2 7.8 / 7.9 Light Reaction and Chemiosmosis

 Where does the light reaction take place?

 What happens when the photosystems absorb sunlight energy?

 Where do the electrons from PS I go?

 Where do the electrons from PS II go?

 What happens as the electrons from PS II are being passed down to PS I?

 How does PS I replenish its electrons?

 How does PS II replenish its electrons?

 What happens to water?

 What happens to the H+ protons?

 What happens to the oxygen?

 How is ATP generated?

 The light energy from the sun is converted to what type of energy and stored where?

 What are the products of the light reaction?

3 4 7.10 Calvin Cycle

 Where does the Calvin cycle take place?  Before Calvin cycle begins where is the energy stored?  What will the energy be used for?  What is the first part of the Calvin cycle?  What happens during the carbon fixation cycle? How many molecules of what are involved?  What happens to the resulting molecule? How many molecules are present? How many carbon atoms does each molecule have? What are the names of the resulting molecule?  When are the products from the Light Reaction used? What are they used for? What happens after the products from the Light Reactions are used? What is the name of the resulting molecule?  How many of the molecules are used to make glucose? What happens to the remaining molecules?  How many ATP and NADPH are used?

5 7.11 Review of Photosynthesis

6 7.12 C4 and CAM Plants

Photorespiration:

C4 plants: