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. Given the information in the provided graphs, which of the two plants (A and B) is a C3 plant and which is a C4 plant. 2. justify the choices you made by explaining how the light response curves and results of the contrasting temperature treatments are consistent with knowledge about each CO2 fixation pathways

. Given the information in the provided graphs, which of the two plants (A and B) is a C3 plant and which is a C4 plant. 2. justify the choices you made by explaining how the light response curves and results of the contrasting temperature treatments are consistent with knowledge about each CO2 fixation pathways

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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1. Given the information in the provided graphs, which of the two plants (A and B) is a C3 plant and which is a C4 plant.

2. justify the choices you made by explaining how the light response curves and results of the contrasting temperature treatments are consistent with knowledge about each CO2 fixation pathways

### Transcription of Graphs on Photosynthesis #### Fig. 1: Photosynthetic CO₂ Assimilation vs. Photosynthetically Active Radiation - **Y-axis**: Photosynthetic CO₂ assimilation (µmol m⁻² s⁻¹) - **X-axis**: Photosynthetically active radiation (Irradiance, µmol m⁻² s⁻¹) Two curves, A and B, represent different photosynthetic responses: - **Curve A**: Shows a steep initial rise in CO₂ assimilation as irradiance increases, reaching a peak around 24 µmol m⁻² s⁻¹ beyond 1200 µmol m⁻² s⁻¹ of irradiance. - **Curve B**: Has a much lower rate of CO₂ assimilation that rises slowly and plateaus around 8 µmol m⁻² s⁻¹. These curves illustrate how different factors or conditions (e.g., types of plants) might affect photosynthesis efficiency under varying light intensities. #### Fig. 2: Photosynthesis vs. Irradiance at Different Temperatures Two separate graphs labeled A and B showing photosynthesis response under two temperature conditions: 35°C and 10°C. - **Graph A**: - **Y-axis**: Photosynthesis - Shows a higher rate of photosynthesis at 35°C than at 10°C under the same light conditions, indicating temperature impacts photosynthetic efficiency. - **Graph B**: - Also represents photosynthetic activity with similar patterns to Graph A. - At both temperatures, the photosynthesis rate increases with irradiance, but more prominently at 35°C. Both graphs in Fig. 2 emphasize the effect of temperature on photosynthetic activity, with higher temperatures typically enhancing the process compared to lower temperatures under full sunlight.
Transcribed Image Text:### Transcription of Graphs on Photosynthesis #### Fig. 1: Photosynthetic CO₂ Assimilation vs. Photosynthetically Active Radiation - **Y-axis**: Photosynthetic CO₂ assimilation (µmol m⁻² s⁻¹) - **X-axis**: Photosynthetically active radiation (Irradiance, µmol m⁻² s⁻¹) Two curves, A and B, represent different photosynthetic responses: - **Curve A**: Shows a steep initial rise in CO₂ assimilation as irradiance increases, reaching a peak around 24 µmol m⁻² s⁻¹ beyond 1200 µmol m⁻² s⁻¹ of irradiance. - **Curve B**: Has a much lower rate of CO₂ assimilation that rises slowly and plateaus around 8 µmol m⁻² s⁻¹. These curves illustrate how different factors or conditions (e.g., types of plants) might affect photosynthesis efficiency under varying light intensities. #### Fig. 2: Photosynthesis vs. Irradiance at Different Temperatures Two separate graphs labeled A and B showing photosynthesis response under two temperature conditions: 35°C and 10°C. - **Graph A**: - **Y-axis**: Photosynthesis - Shows a higher rate of photosynthesis at 35°C than at 10°C under the same light conditions, indicating temperature impacts photosynthetic efficiency. - **Graph B**: - Also represents photosynthetic activity with similar patterns to Graph A. - At both temperatures, the photosynthesis rate increases with irradiance, but more prominently at 35°C. Both graphs in Fig. 2 emphasize the effect of temperature on photosynthetic activity, with higher temperatures typically enhancing the process compared to lower temperatures under full sunlight.
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