With the help of schematic representation describe the HSK pathway?
Answers
HSK stands for Hatch Sl-ack Kortshak pathway.
• The HSK pathway is also known as the C4 pathway because phosphoenol pyruvate (PEP) is a 3-carbon molecule accepts CO2 and it is fixed by the enzyme, PEPcase (PEP Carboxylase) in the mesophyll cells.
• It forms the 4-carbon compound oxaloacetic acid (OAA), and then other 4-carbon compounds like malic acid and asparatic acid.
• These compounds are transported to the bundle sheath cells.
• There, C4 acid breaks down to form C3 acid and CO2 (released only in the bundle sheath cells, and enters the C3 cycle).
• Since the first product of this cycle is a 4-C compound, this cycle is known as C4 pathway.
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HSK stands for the Hatch Sl-ack Kortshak pathway.
Explanation:
- The HSK pathway is also known as the C4 pathway because phosphoenolpyruvate (PEP) is a 3-carbon molecule that accepts CO2 and it is fixed by the enzyme, PEPcase (PEP Carboxylase) in the mesophyll cells.
- It forms the "Four-carbon compound oxaloacetic acid (OAA)", and then other Four-carbon compounds like malic acid and aspartic acid.
- These compounds are transported to the bundle sheath cells.
- the four-carbon compound to form as C3 compounds and release the carbon dioxide (released only in the bundle sheath cells, and enters the C3 cycle).
- The first product of this cycle is a 4-C compound, this cycle is known as the C4 pathway.
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Write a schematic representation of h.s.k pathway.
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