Which of the following is wrongly matched

Options

A. Sorghum - Kranz anatomy
B. PEP carboxylase - Mesophyll cells
C. Blackman - Law of minimum
D. Photosystem II - `P_(700)`

Answer

To identify the wrongly matched option from the given choices, let's analyze each option step by step:

### Step 1: Analyze Sorghum and Cranes Anatomy
- **C4 Plants**: Sorghum is a known C4 plant, which means it undergoes a specific type of photosynthesis that involves a unique anatomical structure known as "cranes anatomy."
- **Cranes Anatomy**: This anatomy is characterized by the presence of two types of cells: mesophyll cells and bundle sheath cells.
- **Conclusion**: Sorghum and cranes anatomy are correctly matched.

### Step 2: Analyze PEP Carboxylase
- **PEP Carboxylase**: This enzyme is crucial in the C4 photosynthetic pathway as it catalyzes the carboxylation of phosphoenol pyruvate (PEP).
- **Location**: PEP carboxylase is found in the mesophyll cells of C4 plants.
- **Conclusion**: PEP carboxylase is correctly matched with its function in C4 plants.

### Step 3: Analyze Blackman's Law of Minimum
- **Law of Minimum**: Proposed by Blackman, this law states that the rate of a process is determined by the factor that is in the shortest supply (the limiting factor).
- **Understanding**: This principle is essential in understanding how various factors affect photosynthesis.
- **Conclusion**: Blackman's law of minimum is correctly matched.

### Step 4: Analyze Photosystem II and P700
- **Photosystems**: There are two main photosystems involved in photosynthesis: Photosystem I (PSI) and Photosystem II (PSII).
- **Wavelengths**:
- Photosystem I absorbs light maximally at 700 nm (P700).
- Photosystem II absorbs light maximally at 680 nm (P680).
- **Conclusion**: The statement that Photosystem II is P700 is incorrect, as Photosystem II is actually P680.

### Final Conclusion
After analyzing all the options, the wrongly matched pair is:
- **Photosystem II and P700** (should be P680).

### Answer
The wrongly matched option is: **Photosystem II - P700**.