A ground substance secreted by connective tissue accumulated between cells and fibres is

Options

A. polysaccharide
B. lipid
C. protein
D. steroid

Answer

To solve the question regarding the ground substance secreted by connective tissue that accumulates between cells and fibers, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about a "ground substance" secreted by connective tissue. We need to identify what this substance is based on the options provided.

2. **Defining Ground Substance**: Ground substance is an amorphous, gel-like material found in connective tissues. It fills the spaces between cells and fibers, providing a medium for the exchange of nutrients and waste.

3. **Components of Ground Substance**: The ground substance is primarily composed of water, large organic molecules, glycosaminoglycans (GAGs), and proteoglycans. GAGs are a type of polysaccharide.

4. **Analyzing the Options**: The options given are:
- A) Carbohydrate
- B) Lipid
- C) Protein
- D) Steroid

5. **Identifying the Correct Option**:
- **Carbohydrate**: This is the correct answer because glycosaminoglycans and proteoglycans are types of carbohydrates (polysaccharides) that are part of the ground substance.
- **Lipid**: Incorrect, as lipids do not constitute the ground substance.
- **Protein**: While proteoglycans contain protein, the ground substance itself is not classified as a protein.
- **Steroid**: Incorrect, as steroids are not components of the ground substance.

6. **Conclusion**: The ground substance secreted by connective tissue that accumulates between cells and fibers is best classified as a carbohydrate, specifically in the form of glycosaminoglycans and proteoglycans.

### Final Answer:
The ground substance secreted by connective tissue is **Carbohydrate**.

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