it is much more efficient in its water use.
Yes!
In a hotter and drier climate, C4 and CAM plants are likely to become more abundant compared to C3 plants. This is because C4 and CAM plants are more adapted to hot and dry conditions, as they have better water and carbon dioxide management strategies. C3 plants, on the other hand, are more suited to cooler and wetter conditions.
The prickly pear cactus is a CAM plant, not a C3 or C4 plant. CAM plants use a different carbon fixation pathway called Crassulacean Acid Metabolism that helps them conserve water by opening their stomata at night.
C3
C3, C4, and CAM are different photosynthetic pathways used by plants to fix carbon dioxide. C3 plants, such as wheat and rice, use the Calvin cycle to fix carbon dioxide. C4 plants, like corn and sugarcane, use a different enzyme to fix carbon dioxide and are more efficient in hot and dry conditions. CAM plants, such as cacti and pineapple, open their stomata at night and fix carbon dioxide into organic acids to use during the day.
Sunflowers are C3 plants. They use the C3 carbon fixation pathway during photosynthesis, which is less efficient in hot and dry conditions compared to C4 plants.
A basswood tree is an example of a C3 plant. C3 plants are the most common type of plants and perform photosynthesis through the C3 pathway, which means they fix carbon dioxide into a three-carbon compound during the Calvin cycle.
Cam stands for Crassulacean acid metabolism. C3 and C4 conserve less water than Cam plants. Actually, C4 plant capture more carbon than C3 plant. In the struggle to reduce carbon dioxide concentration in the atmosphere, genetic scientists have modified some large scale crops into C4 bases. Cam plant is wholly different from C3 and C4 and examples of are the cactus and other succulent plants in order to survive in dry dusty regions. In Cam plants, [http://en.wikipedia.org/wiki/Carbon_fixation carbon fixation] occurs at night while C3 and C4 plants carry out photosynthesis during daylights.
CAM (Crassulacean Acid Metabolism) and C4 pathways are more efficient than C3 pathway in photosynthesis because they have additional carbon-fixing steps that optimize CO2 uptake and minimize water loss. C4 plants have a spatial separation of carbon fixation and the Calvin cycle in different cells, while CAM plants have a temporal separation by fixing CO2 at night and using it during the day. Both pathways are adaptations to hot and dry environments.
Cocoa is neither a C3 or C4 plant. Though it tends to live in warmer climates, it does not fit into either category.
C3 due to the abundance of water. C4 and CAM plants tend to inhabit very dry environments and have adaptations that minimise photorespiration (a process that wastes ATP) and water loss.
An apple tree is a C3 plant, which means it uses the C3 photosynthetic pathway.