C3, C4 & CAM Plants quiz Flashcards

Photorespiration is a process that wastes energy in the form of ATP and NADPH to produce carbon dioxide, making photosynthesis inefficient.

C3 plants are most susceptible to photorespiration in hot temperatures.

C4 and CAM plants have evolved different variations in photosynthesis that allow them to avoid or minimize photorespiration.

In hot temperatures, plants close their stomata to prevent dehydration, which also prevents gas exchange and leads to photorespiration.

CAM plants fix carbon dioxide into 4-carbon compounds at night and store them in vacuoles to be used during the day for photosynthesis.

C4 plants separate the photosynthesis processes into different cells, while CAM plants fix carbon dioxide at night and use it during the day.

CAM plants keep their stomata closed during the daytime to reduce water loss and prevent dehydration.

Vacuoles in CAM plants store 4-carbon compounds that release carbon dioxide for the Calvin cycle during the daytime.

The Calvin cycle is a stage of photosynthesis that occurs during the daytime in CAM plants, using carbon dioxide released from stored 4-carbon compounds.

The 'C4 bomb' helps remember C4 plants, and the 'camel wearing pajamas' helps remember CAM plants.

The two stages of photosynthesis are the light reactions and the Calvin cycle.

C4 plants minimize photorespiration by separating the initial carbon fixation and the Calvin cycle into different cells.

Stomata allow gas exchange, including the intake of carbon dioxide and release of oxygen.

Photosynthesis efficiency decreases when photorespiration occurs because energy is wasted.

Avoiding photorespiration is important because it conserves energy and makes photosynthesis more efficient.