Assertion : Plants have no specialised respiratory organs.
Reason : There is very little transport of gases from one plant part to another.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "Plants have no specialized respiratory organs." This is true because unlike animals, which have specific organs like lungs and gills for respiration, plants do not have any organ that is solely dedicated to the process of respiration.

2. **Understanding the Reason**: The reason given is "There is very little transport of gases from one plant part to another." This is also accurate. In plants, the transport of gases such as oxygen (O2) and carbon dioxide (CO2) occurs mainly through diffusion, which is a slow process.

3. **Connection Between Assertion and Reason**: The assertion and reason are related. The absence of specialized respiratory organs in plants leads to limited gas transport. Since diffusion is the primary method for gas exchange, it results in a slow and less efficient transport of gases between different parts of the plant.

4. **Mechanism of Gas Exchange**: In plants, gas exchange primarily occurs through small openings called stomata, which are found on the surface of leaves. These stomata allow for the diffusion of gases in and out of the plant but are not specialized organs.

5. **Conclusion**: Both the assertion and reason are correct, and the reason correctly explains the assertion. Therefore, the answer to the question is that both statements are true, and the reason supports the assertion.

### Final Answer:
Both the assertion and reason are true, and the reason correctly explains the assertion.

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