CHAPTER 13- PHOTOSYNTHESIS 🤎

Question 1

Summarise the process of photosynthesis in two sentences, state where it takes place then write out a balanced equation for photosynthesis (AS level recap)

Answer 1

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Question 2

*State the names of the two main stages of photosynthesis

Answer 2

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Question 3

*Summarize the light-dependent stage of photosynthesis including where it takes place and what occurs during this stage (use keywords in your explanation then define the three keywords to check your understanding)

Answer 3

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Question 4

*Summarize the light-independent stage of photosynthesis including where it takes place and what occurs during this stage (use keywords in your explanation)

Answer 4

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Question 5

*Label all parts of a chloroplast using the diagram in your gallery

Answer 5

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Question 6

*Explain the functions of the following parts of the chloroplast: lamellae (2), thylakoids (membranes and spaces) (3), grana (1), stroma (1) and ribosomes (1)
(you may include more than one function for each organelle)

Answer 6

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Question 7

*Use different chloroplast organelles as examples to explain the relationship between the structure and function of chloroplasts (5 marks)

Answer 7

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Question 8

*Name the four chloroplast pigments
*Explain what photosystems are and the difference between photosystems I and II

Answer 8

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Question 9

*Explain the role of chloroplast pigments as a whole and then the role of each type of chloroplast pigment in light absorption in thylakoids

Answer 9

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Question 10

*Use the diagram in your notes to interprete the absorption spectra of chloroplast pigments (explain your understanding in detail)

Answer 10

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Question 11

*Use the diagram in your notes to interprete the action spectra for photosynthesis (explain your understanding in detail)

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Question 12

State the similarities between the absorption and action spectrum

Answer 12

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Question 13

*Which two processes occur during the light-dependent stage of photosynthesis?

Answer 13

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Question 14

*Explain the process of cyclic photophosphorylation IN DETAIL including all necessary information (use a diagram if necessary)
-state one difference between cyclic and non-cyclic photophosphorylation (long answer question)

Answer 14

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Question 15

*Explain the process of non-cyclic photophosphorylation IN DETAIL including all necessary information (use a diagram if necessary)
-state at least two similarities between cyclic and non-cyclic phosphorylation (long answer question)

Answer 15

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Question 16

*Explain the process of photolysis IN DETAIL using two equations and keywords (long answer question)

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Question 17

*Explain the three main stages of the Calvin cycle IN DETAIL using a diagram if necessary (long answer question)

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Question 18

*State the uses of some Calvin cycle intermediates (GP and TP) STOPPED HERE

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Question 19

*State three limiting factors of photosynthesis

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Question 20

*Explain how light intensity affects the rate of photosynthesis, use graphs in your explanation

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Question 21

*Explain how temperature affects the rate of photosynthesis, use graphs in your explanation

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Question 22

*Explain how carbon dioxide concentration affects the rate of photosynthesis, use graphs in your explanation

Answer 22

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Question 23

*Describe and explain an experiment where chromatography is used to separate chloroplast pigments (refer to the Rf values in identification of chloroplast pigments)

Answer 23

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Question 24

*Describe and explain an experiment where redox indicators and a suspension of chloroplasts are used to determine the effects of light intensity and light wavelength on the rate of photosynthesis

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Question 25

*Describe and explain an experiment where aquatic plants are used to determine the effects of light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis

Answer 25

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