A plant is provided with ideal conditions for photosynthesis and supplied with isotope `.^(14)CO_(2)`. When the products of the process are analysed carefully, what would be nature of products

Options

A. Both glucose and oxygen are labelled
B. Only oxygen is labelled but glucose is normal
C. Both glucose and oxygen are normal
D. Only glucose is labelled and oxygen is normal.

Answer

To solve the question regarding the nature of products when a plant is provided with ideal conditions for photosynthesis and supplied with isotope \(^{14}CO_2\), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Photosynthesis**:
Photosynthesis is the process by which plants convert carbon dioxide (\(CO_2\)) and water (\(H_2O\)) into glucose (\(C_6H_{12}O_6\)) and oxygen (\(O_2\)) using sunlight and chlorophyll.

2. **Chemical Equation**:
The overall equation for photosynthesis can be represented as:
\[ 6CO_2 + 12H_2O \xrightarrow{\text{light, chlorophyll}} C_6H_{12}O_6 + 6O_2 \]
Here, \(CO_2\) is reduced to form glucose, and \(H_2O\) is oxidized to release oxygen.

3. **Role of Isotope**:
When the plant is supplied with \(^{14}CO_2\), the carbon atoms in the carbon dioxide are labeled with the radioactive isotope \(^{14}C\). This means that any carbon that gets incorporated into glucose during photosynthesis will carry the \(^{14}C\) label.

4. **Incorporation of Isotope**:
- The \(^{14}C\) from \(^{14}CO_2\) will be incorporated into the glucose molecule during the synthesis.
- The oxygen produced as a byproduct comes from the water (\(H_2O\)), not from the carbon dioxide.

5. **Analyzing the Products**:
- The glucose produced will contain the \(^{14}C\) isotope, making it a labeled glucose molecule.
- The oxygen released will be normal (not labeled) because it originates from the water molecules.

6. **Conclusion**:
Based on the above analysis, when the products of photosynthesis are analyzed, the nature of the products will be:
- Only glucose is labeled (contains \(^{14}C\)).
- Oxygen is normal (not labeled).

### Final Answer:
Only glucose is labeled and oxygen is normal.

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