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Select the incorrect pairing....

Select the incorrect pairing.

A

`C_3` - Example maize

B

`C_4` - Structure : Kranz anatomy

C

Calvin cycle - First stable product PGA

D

Hatch & Slack cycle - First stable product OAA

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question of selecting the incorrect pairing, let's analyze each option step by step. ### Step 1: Analyze Option 1 - **Pairing**: C3 and example is maize. - **Analysis**: C3 plants are those that primarily use the Calvin cycle for carbon fixation. Maize is not a C3 plant; it is a C4 plant. Therefore, this pairing is incorrect. ### Step 2: Analyze Option 2 - **Pairing**: C4 and structure is Kranz Anatomy. - **Analysis**: Kranz Anatomy is indeed a characteristic feature of C4 plants. In C4 plants, the mesophyll cells are arranged around the bundle sheath cells in a ring-like fashion. This pairing is correct. ### Step 3: Analyze Option 3 - **Pairing**: Calvin cycle and first stable product is PGA (phosphoglycerate). - **Analysis**: In the Calvin cycle, the first stable product formed is indeed PGA (3-phosphoglycerate). This pairing is correct. ### Step 4: Analyze Option 4 - **Pairing**: Hatch and Slack cycle and first stable product is OAA (oxaloacetic acid). - **Analysis**: The Hatch and Slack pathway is a C4 carbon fixation pathway, and the first stable product is OAA (oxaloacetic acid). This pairing is correct. ### Conclusion After analyzing all options, the incorrect pairing is: - **Option 1**: C3 and maize. ### Final Answer The correct answer is **Option 1**. ---
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