In lichens , the phycobiont and mycobiont are .............and ……....., respectively.

Options

A. heterotrophic, autotrophic
B. heterotrophic, heterotrophic
C. autotrophic, heterotrophic
D. autotrophic , autotrophic

Answer

To solve the question regarding the components of lichens, we need to identify the roles of the two main partners involved in this symbiotic relationship.

### Step-by-Step Solution:

1. **Understanding Lichens**:
- Lichens are a symbiotic association between two different organisms: fungi and algae.

2. **Identifying the Components**:
- In this association, the algal component is referred to as the **phycobiont**.
- The fungal component is referred to as the **mycobiont**.

3. **Defining the Roles**:
- The **phycobiont** (algal part) is responsible for photosynthesis. This means it can produce its own food using sunlight, making it an **autotroph**.
- The **mycobiont** (fungal part) does not perform photosynthesis. Instead, it absorbs water and nutrients from the environment, making it a **heterotroph**.

4. **Conclusion**:
- Therefore, in lichens, the phycobiont is **autotroph** (algal part) and the mycobiont is **heterotroph** (fungal part).

### Final Answer:
In lichens, the phycobiont and mycobiont are **autotroph** and **heterotroph**, respectively.

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