Question:
In C4 plants, CO2 combines with
In C4 plants, CO2 combines with
Updated On: Jun 23, 2024
- phosphoenol pyruvate
- phosphoglyceraldehyde
- phosphoglyceric acid
- ribulose diphosphate.
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The Correct Option is A
Solution and Explanation
C4 pathway was first reported in members of family Gramineae (grasses) like sugarcane, maize, sorghum, etc. These C4 plants have a characteristic leaf anatomy called Kranz anatomy. So in chloroplasts of mesophyll cells - PEPCo (PEP carboylase) is the key enzyme used to fix CO2 in C4 plants Oxaloacetic acid is a 4-C compound and is the first stable product so this pathway is known as C4 cycle.
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Concepts Used:
Photosynthesis in Higher Plants
Processes Of Photosynthesis in Higher Plants:
Photosynthesis in higher plants involves the following processes:
- Light Reaction
- Dark Reaction
Light Reaction:
- This phenomenon occurs in the presence of light.
- The pigment absorbs light and produces energy in the form of ATP.
- The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.
Dark Reaction:
This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:
- Calvin Cycle (C3 Cycle)
- C4 Cycle (Hatch and Slack Pathway)