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In C4 and CAM plants carbon dioxide is fixed in the of mesophyll cells?
In C4 plants, carbon dioxide is initially fixed in the mesophyll cells by the enzyme PEP carboxylase, forming a 4-carbon compound before being transferred to bundle sheath cells. In CAM plants, carbon dioxide is fixed in the mesophyll cells at night and stored as organic acids until daylight when it is released and used in the Calvin cycle.
What do c3 and c4 plants have in common?
C3 and C4 plants are both categories of plants based on the type of photosynthetic pathway they use. Both types of plants undergo the Calvin cycle to fix carbon dioxide and produce sugar during photosynthesis. However, C4 plants have an additional carbon-concentrating mechanism that allows for more efficient photosynthesis in hot and dry conditions compared to C3 plants.
Is corn c4 plant?
Corn, or maize, is a C4 plant. A c4 plant relates to a group of plants that feature 4-carbon molecules present after the first product of carbon fixation.
What is one of the disadvantages of the c4 pathway is that is require?
One disadvantage of the C4 pathway is that it requires additional energy in the form of ATP for the initial steps of carbon fixation in mesophyll cells before transferring the fixed carbon to bundle sheath cells. This extra ATP requirement can decrease overall photosynthetic efficiency compared to C3 plants.
What is the value of Carbon dioxide compensation point in C3 and C4 plants respectively?
Around 50ppm for C3 plants and around 5ppm for C4 plants.
Is pine a C4 plant?
No, pine trees are not C4 plants. They are considered C3 plants, which means they use the C3 photosynthetic pathway to fix carbon dioxide. C4 plants have a different mechanism to concentrate carbon dioxide during photosynthesis.
How do C4 and C3 plants differ?
C4 plants have an extra step in their photosynthetic pathway to minimize photorespiration, allowing them to be more efficient in hot and dry conditions compared to C3 plants. C4 plants, like corn and sugarcane, have specialized leaf anatomy with separate cells for carbon fixation, while C3 plants, like wheat and rice, lack this specialization.
Is balsam plant a C4 or C3 plant?
Balsam plants are C3 plants. They use the C3 carbon fixation pathway for photosynthesis, which involves the initial fixation of carbon dioxide into a three-carbon compound.
What is C2 plants?
C3 plants refer to a type of plant that uses the C3 carbon fixation pathway during photosynthesis. This pathway is less efficient in hot and arid conditions compared to the C4 pathway used by C4 plants.
Is wheat a C4 plant?
Technically, the answer is no because it does not have the anatomical structure of C4 plants. However, it has adaptation similar to C4 plants with regard to carbon dioxide use efficiency. (Ref. Mineral nutrition of higher plants : 2nd edt : pg 140)
Is sunflower c3 or c4 plant?
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.
Is crabgrass a c4 plant?
Yes, crabgrass is a C4 plant. C4 plants have a specialized mechanism for carbon fixation that allows them to adapt to hot and dry conditions, making them well-suited for growth in environments where C3 plants may struggle.
