If in a photosynthetic system `H_2O^(18)` type is provided , what will be the type of oxygen released in the process ?

Options

A. `O^(18)`
B. `O^(16)`
C. normal `O_2`
D. `O^(14)`

Answer

To solve the question regarding the type of oxygen released in a photosynthetic system when \( H_2O^{18} \) is provided, we can follow these steps:

### Step 1: Understand the Role of Water in Photosynthesis
Photosynthesis is a process that involves the conversion of light energy into chemical energy by plants, algae, and some bacteria. One of the key reactions in photosynthesis is the splitting of water molecules (photolysis) to release oxygen.

### Step 2: Identify the Isotope of Water
In this case, the water provided is \( H_2O^{18} \). The notation \( H_2O^{18} \) indicates that this water contains the oxygen isotope \( O^{18} \). Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

### Step 3: Analyze the Photolysis of Water
During the light-dependent reactions of photosynthesis, water molecules are split into oxygen, protons, and electrons. The oxygen released in this process comes directly from the water molecules.

### Step 4: Determine the Type of Oxygen Released
Since the water provided is \( H_2O^{18} \), the oxygen that is released during the photolysis of this water will also be of the same isotope type. Therefore, the oxygen released will be \( O^{18} \).

### Conclusion
The type of oxygen released in the process when \( H_2O^{18} \) is provided is \( O^{18} \).

### Final Answer
The correct answer is \( O^{18} \).

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