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Two alternative photosynthesis pathways found in plants?
C4 and CAM
What happens to ordinary plants (or C4 or CAM) when stomata close?
Blah
In C3 plants the conservation of water promotes?
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.
What are two alternate carbon- fixing pathways used by plants in hot climates?
c4 and the cam pathway
What happens during the carbon fixation step of the Calvin cycle?
Products such as G3P or PGAL are produced in the Calvin cycle in C3, C4, and CAM plants. Carbon fixation helps each plant adapt to the particular environment they live in. C4 plants are those such as sugarcane or grasses. CAM plants are the cactus plants or plants that live in the desert. It also helps with the production of ATP.
What would be the expected effect on plants if the atmospheric co2 concentration was doubled?
Since C4 plants need for CO2 is more than C3 plants, doubling the concentration of CO2 will have more positive effect on C4 plants. If CO2 is a limiting factor for photosynthesis, both C3 & C4 plants will have positive effect.
What kinds of plants use PEP?
CAM and C4
How can CAM plants differ from both C3 and C4 plants?
AnswerCAM plants, like C4 plants live in hot and dry places. Unlike any other type of plant, the can close their stomates during the day to conserve water. The also use PEPCase to fix carbon dioxide at night, instead of using RuBP.Note that, only the Cam plants fix CO2 later during the night because they have their stomata closed during the day.
Two alternative photosynthesis pathways found in plants?
C4 and CAM
What happens to ordinary plants (or C4 or CAM) when stomata close?
Blah
How does CO2 get into a leaf?
Through the stomata, openings in the leaf surface. By diffusion. There are three photosynthesis processes, C3, C4, and CAM. (These names describe part of the chemistry.) The desert plants (and some epiphytes) use CAM, for in this process, the stomata are closed during the day, and open at night. The plant absorbs CO2 into its system as a complex chemical (the CAM bit) over night, and during the day, the stomata close and the plant converts the CAM chemical into CO2 to be used for photosynthesis in the usual way. Normal plants open their stomata during the day, and CO2 diffuses in and O2 out.
Why is the delivery of carbon dioxide to rubisco faster in c4 plants than in c3 plants?
Because c4 plants have greater numbers of oxide tanks than c3 plants! C4 plants also have a special enzyme called Phosphoenolpyruvate carboxylase more commonly known as PEP carboxylase. While rubisco can bind to both CO2 or O2 and thus making the reaction with CO2 go slower, PEP carboxylase only binds with CO2, making the number of reactions with CO2 greater. In a hot area, plants close their stomata to conserve water. This will result in C3 plants running out of CO2 and starting to bind RuBP with O2 in rubisco, which is called photorespiration(does not make glucose). In C4 plants, PEP carboxylase ONLY binds with CO2 and when there still is not a lot of CO2 in the cell, it still can make glucose.
In C3 plants the conservation of water promotes?
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.
What are two alternate carbon- fixing pathways used by plants in hot climates?
c4 and the cam pathway
In C4 and CAM plants carbon dioxide is fixed in the of mesophyll cells?
Cytoplasm of the mesophyll cells
What happens during the carbon fixation step of the Calvin cycle?
Products such as G3P or PGAL are produced in the Calvin cycle in C3, C4, and CAM plants. Carbon fixation helps each plant adapt to the particular environment they live in. C4 plants are those such as sugarcane or grasses. CAM plants are the cactus plants or plants that live in the desert. It also helps with the production of ATP.
Under arid conditions C4 plants fix carbon dioxide more efficiently than C3 plants because C4 plants?
C4 plants fix 4 carbon dioxides during glycolysis instead of the normal 3 (hence C3 plants). CAM plants fix carbon dioxide at night instead of during the day.
