Organism having pellicle which makes their body flexible are also characterised by the presence of all except :-

Options

A. Pigments are identical to those present in higher plants
B. Behave like heterotrophs by predating on other smaller organism when deprived of sunlight
C. Having silicicated and indestructible cell wall
D. Heterokont (two types of flagella) type of flagellation in which one is short and other is long

Answer

To solve the question regarding organisms with a pellicle that makes their body flexible, we need to analyze the characteristics associated with such organisms. Here’s a step-by-step solution:

### Step 1: Understand the Concept of Pellicle
- A pellicle is a thin, flexible protein layer that supports the cell membrane in certain protozoa. It allows for flexibility in the organism's body.

**Hint:** Remember that a pellicle is not a rigid structure like a cell wall; it provides flexibility.

### Step 2: Identify Organisms with Pellicle
- Organisms that have a pellicle include certain protozoa, with Euglena being a prime example. Euglena can exhibit both autotrophic and heterotrophic characteristics.

**Hint:** Think about the examples of organisms that possess a pellicle and their nutritional modes.

### Step 3: Analyze the Given Options
- We need to evaluate the options provided in the question to determine which characteristic is NOT associated with these pellicle-bearing organisms.

1. **Pigments identical to those present in higher plants**: This is true for organisms like Euglena, which contain chloroplasts.

2. **Behave like heterotrophs by predating on other small organisms when deprived of sunlight**: This is also true, as Euglena can switch to heterotrophy when necessary.

3. **Having a silicellated and indestructible cell wall**: This statement is false. Pellicle-bearing organisms do not have a rigid cell wall; instead, they have a flexible pellicle.

4. **Having two types of flagella, one short and one long**: This is true for certain flagellated protozoa, including Euglena.

**Hint:** Focus on the characteristics that define the structure of these organisms. A cell wall is not a feature of those with a pellicle.

### Step 4: Conclusion
- The characteristic that is NOT associated with organisms having a pellicle is the presence of a "silicellated and indestructible cell wall." Therefore, this is the correct answer.

**Final Answer:** Organisms having a pellicle are characterized by all except having a silicellated and indestructible cell wall.