In Glycine max,the product of biological nitrogen fixation is transported from the root nodules to other parts as:

Options

A. Ammonia
B. Glutamate
C. Nitrates
D. Ureides

Answer

To solve the question regarding the transport of the product of biological nitrogen fixation in Glycine max (soybean), we can follow these steps:

### Step 1: Understand Biological Nitrogen Fixation
Biological nitrogen fixation is the process by which certain bacteria convert atmospheric nitrogen (N₂) into ammonia (NH₃), which can be utilized by plants. In legumes like Glycine max, this process occurs in root nodules.

**Hint:** Remember that nitrogen fixation converts atmospheric nitrogen into a usable form for plants.

### Step 2: Identify the Products of Nitrogen Fixation
The primary product of biological nitrogen fixation is ammonia (NH₃). However, ammonia is toxic to plants and cannot be transported in its free form over long distances.

**Hint:** Consider the toxicity of ammonia and how plants manage nitrogen transport.

### Step 3: Explore the Fate of Ammonia
To safely transport nitrogen, plants convert ammonia into less toxic compounds. This can involve processes such as reductive amination and transamination, leading to the formation of amino acids and other nitrogenous compounds.

**Hint:** Think about how plants convert ammonia into safer forms for transport.

### Step 4: Identify the Transport Form in Glycine max
In Glycine max, the fixed nitrogen is primarily transported as ureides. Ureides are nitrogen-rich compounds that have a high nitrogen-to-carbon ratio, making them suitable for transport from root nodules to other parts of the plant.

**Hint:** Recall that ureides are a form of nitrogen transport that is efficient for legumes.

### Step 5: Conclusion
Based on the understanding of nitrogen fixation and transport mechanisms in Glycine max, the correct answer to the question is that the product of biological nitrogen fixation is transported from the root nodules to other parts as ureides.

**Final Answer:** Ureides