In this lesson, you will be introduced to the light independent reactions of photosynthesis (a.k.a. Calvin cycle) and determine the links between the light independent reaction and the light dependent reactions.
By the end of this lesson, students should be able to:
- establish a clear connection between the light independent and light dependent reactions of photosynthesis.
- use appropriate terminology such as Calvin cycle, RuBP, G3P, sucrose, stroma, Rubisco, 3-carbon organic acids (a.k.a. C3 pathway) and 4-carbon organic acids (a.k.a. C4 pathway), CAM, photorespiration, etc.
- explain how CO2 is incorporated into the Calvin cycle and specifically what occurs at the three phases of the Calvin cycle: carbon fixation, reduction and regeneration of the CO2 acceptor (RuBP)
- determine how many turns of the Calvin cycle are required to produce 1 molecule of G3P and 1 molecule of glucose.
- compare and contrast C-3 and C-4 plants and identify the spatial separation of the C-4 pathway, that is the cell types involved in this pathway.
- describe how the CAM pathway evolved for plants living in arid conditions.
- clearly link light reactions to the Calvin cycle using a diagram and or a detailed description.
Let’s examine the light independent reactions of photosynthesis (the Calvin cycle) in the video lesson below.
An account on how plants living in arid conditions have developed alternative mechanisms of carbon fixation is presented in the video lesson below.
To support your mastering of the terminology used in photosynthesis, please print out and complete the Crossword Puzzle below (Assignment).