Which of the following is not a cell inclusion ?

Options

A. granule
B. Glycocalyx
C. Pigment
D. Vacuole

Answer

To solve the question "Which of the following is not a cell inclusion?", we will follow these steps:

### Step 1: Understand the Definition of Cell Inclusions
Cell inclusions are defined as non-living aggregates of substances found within the cytoplasm of a cell. They can include various types of materials such as proteins, lipids, and pigments. Importantly, they do not have any biological function but serve primarily for storage.

**Hint:** Remember that cell inclusions are non-living and do not perform biological functions.

### Step 2: Identify Examples of Cell Inclusions
Common examples of cell inclusions include:
- **Granules**: These are small particles that can store substances like starch or glycogen.
- **Glycogen**: A polysaccharide that serves as a form of energy storage in cells.
- **Pigments**: Such as anthocyanins, which provide color to plant cells.

**Hint:** Think of substances that are stored in cells but do not have a membrane around them.

### Step 3: Differentiate Between Cell Inclusions and Organelles
It is crucial to distinguish between cell inclusions and organelles. Organelles are specialized structures within a cell that perform specific functions and are often membrane-bound. For example, vacuoles are membrane-bound organelles that store substances and maintain turgor pressure in plant cells.

**Hint:** Focus on the presence of a membrane; if it has a membrane, it is likely an organelle, not an inclusion.

### Step 4: Analyze the Options Given
In the question, we need to evaluate the options provided (not listed here) to identify which one does not fit the definition of a cell inclusion. Based on our understanding:
- If one of the options is a vacuole, it would be the correct answer because vacuoles are membrane-bound organelles, not cell inclusions.

**Hint:** Look for the option that refers to a membrane-bound structure.

### Step 5: Conclude the Answer
After analyzing the definitions and examples, we conclude that the correct answer to the question "Which of the following is not a cell inclusion?" is the option that refers to a vacuole, as it is an organelle and not a cell inclusion.

**Final Answer:** The correct option is the one that refers to a vacuole.