In monoecious algal plant Chara the male and female sex organs are called as

Options

A. antheridium and oogonium
B. antheridium and carppogonium
C. Antherozoid and egg cell
D. antheridium and archegonium

Answer

To answer the question regarding the male and female sex organs in the monoecious algal plant Chara, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: Recognize that Chara is a type of green algae, which is classified under the group of organisms that can have both male and female reproductive structures.

2. **Define the Male Sex Organ**: In Chara, the male sex organ is called the **antheridium**. This structure is responsible for producing male gametes (sperm).

3. **Define the Female Sex Organ**: The female sex organ in Chara is called the **oogonium**. This structure is responsible for producing female gametes (eggs).

4. **Combine the Information**: Since the question asks for both the male and female sex organs, we can state that in Chara, the male sex organ is the antheridium and the female sex organ is the oogonium.

5. **Select the Correct Option**: Based on the definitions provided, the correct answer to the question is that the male and female sex organs in Chara are the **antheridium** and **oogonium**, respectively.

### Final Answer:
In monoecious algal plant Chara, the male and female sex organs are called **antheridium** (male) and **oogonium** (female).

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