A plant in which carbon fixation occurs at night and the Calvin cycle occurs during the day.Group of answer choicesC3 plantC4 plantCAM plant

Break Down the Problem

1. Identify the plant types mentioned in the question: C3, C4, and CAM plants.
2. Determine the carbon fixation and Calvin cycle activities for each type.

Relevant Concepts

1. C3 Plant: Carbon fixation occurs during the day when photosynthesis takes place.
2. C4 Plant: Carbon fixation happens in the mesophyll cells and is followed by the Calvin cycle, which can also occur during the day.
3. CAM Plant: Carbon fixation occurs at night to minimize water loss, and the Calvin cycle occurs during the day when the stomata are closed.

Analysis and Detail

• C3 plants primarily fix carbon dioxide during the day through the Calvin cycle.
• C4 plants separate the carbon fixation and Calvin cycle processes but both occur during the day.
• CAM plants are specifically adapted to arid environments, using a strategy where they fix carbon at night (stomata open), and then use the stored malate in the Calvin cycle during the day (stomata closed).

Verify and Summarize

Given the characteristics outlined, the correct choice that describes a plant where carbon fixation occurs at night and the Calvin cycle occurs during the day is identified as a CAM plant.

Final Answer

CAM plant